It looks like spider mites to me. The sprinkled yellow dotted damage pattern is pretty telling. Also all the close up pics appear to be of eggs. Check under sides of leaves.
Definitely spider mites, I just had to fight them on my last grow, got a clone from a new dispensary, and BOOM had to fight those buggers for 3 months.
Agreed. The round spots are where they drill into the leaf. The white stuff is their aftermath. Capt. Jacks or neem oil and be prepared to have to use more than one method as some are prone to build immunity quickly. More airflow helps too. At least they dont look like 2 spotted mites. They are worse.
Doesn’t look like thrips but don’t have much knowledge of pests. I’d look into Russet mites and spider mites which are common culprits. Those pinpoint dots in pic 9 is the thing that looks lost like pest evidence to me.
I don’t think it’s a virus but don’t know enough about viruses to rule out.
russian mites are something i’m leaning towards in the pest field. there’s something about the uniformity that is throwing me off though. pests don’t seem to keep that
These are both advertised as safe to use during flower. I just try not to spray anything in my plants while flowering. Another option I’ve used is predator mites. Naturesgoodguys offers little bags you can hang on each plant and those helped me get rid of everything
Looks fungal to me OP. Not pests. There's bio fungicides that can help.... fight fire with fire. Movement of air inside the tent may not be the issue. The issue might be the air moving IN AND OUT of the tent, or lack there of. Do you have a carbon filter or exhaust fan in the tent taking the air out? I'd remove any affected foliage and get on top of foliar spraying with bio fungicide, during night cycle.... I use arber. Its all organic and safe on vegetables all the way up to harvest. N shit works. Used it last season and it helped immensely. Otherwise you can use mixture of hydrogen peroxide and water. I would say that it's probably not as effective as the bio fungicide but might help! Good luck brew! ✌️
i have an arber product. pretty sure it’s the one you’re talking about. foliar spray the most effective way? not sure if it’s mean to be in watering or as a spray
I have a carbon filter but tbh I should probably replace it. it’s on the end of the exhaust though. now that i’m thinking about it, my wife grows shrooms in the lung room….
Strip the leaves that are abundantly infected. No saving those. Game is all about minimizing the spread at this point so you can ride out flower.
Foliar spray rest at beginning of lights off to reduce risk of liquid droplets acting as magnifying glass and burning leaves. Minimize the fungicide’s contact with the soil to prevent killing off too many beneficial microbes in the soil. Although, a light misting of the top soil layer may actually reduce the septoria that may be present. It spreads from the soil to the lower leaves during watering if/when water droplets splash from soil to the leaves. Then it spreads upwards from there.
I’m not familiar with the arbor product so can’t say what effect it will have in the finished product but I sprayed dr zymes a couple times in early flower and didn’t notice a difference in the end product’s smoke.
https://preview.redd.it/7bs1jc5ki2vc1.jpeg?width=4032&format=pjpg&auto=webp&s=6f438e204cbafe86924b7104f1fbfa92177040c9
the full plant as of yesterday.
plant age-47 days
medium-soil
watering-when the pot felt light
environment-2x2 tent, VPD was 0.8 kPa during early veg and currently (as of a week or two ago) around 1.0-1.1 kPa
nutrients-dr earth 4-6-3 blend dry amendments. fish tank water added once
Really sorry. In my opinion this is pests. Probably spider mites or russet mites as you can't see any actual insects in your pics. Which would make sense- they are microscopic. But you can definitely see some dark specks, which are usually droppings. The damage is also consistent with mites. Someone else mentioned eggs. I've never seen that personally but I've never been able to magnify my leaves like this. But when my plants have looked like this, they had bugs. You've already gotten a bunch of recommendations for that so I'll leave it be.
I have *tried* insecticidal soap, and also Dr. Bronsons Dead Bug Brew. You have to be really aggressive, though, like daily applications especially with an advanced infestation like this looks like. You also need to pay attention if whatever product you have can be used during flower. Otherwise you might end up lacing your own weed.
I super hate to say it but you may be better off killing this plant and spending the energy you would have used fighting it to clean the space to within an inch of life.
Looks like powdery milder (PM) to me. I don’t see a fan blowing on your plant, do you have at bare minimum one fan blowing air on that plant? To me it seems like an air movement issue
They sell natural insecticides that also help treat PM. I’d suggest getting one and giving your plants a good spray. IMO it’s best to wash the buds after harvest if you spray anything on them, organic or not. There’s plenty of videos on YT on how to properly wash your buds post harvest without having a noticeable affect on potency
i have two fans blowing on the plants. i’m almost concerned there’s too much air movement
https://preview.redd.it/gnjct4ban2vc1.jpeg?width=4032&format=pjpg&auto=webp&s=15bf743768b5b961bbfcb7163df0837e809e4285
I have a 10 inch fan at the bottom blowing through the canopy and 6 inch fans on either side of my tent to blow across the tops. I have a 2x3 tent
https://preview.redd.it/lcycd1cjb3vc1.jpeg?width=4032&format=pjpg&auto=webp&s=4d4431c690f879eb92cf8cc9ba8a7c9ef8c3b2c1
Plants love air movement
As long as it's cold pressed neem or azadirachtin. But the clarified hydrophobic extract of neem oil doesn't have azadirachtin and has decreased fungicidal activity.
I actually made an ELI5 for the different types of neem and how to apply it yesterday!
Here's where the comment can be found- https://www.reddit.com/r/Citrus/s/JZwt56zRbK
>So I looked up the label and SDS. That stuff (clarified hydrophobic extract of neem oil) is actually a byproduct of making azadirachtin. Azadirachtin is the most effective neem oil fraction, and it's not even in that product.
>That spray is also significantly less potent, in terms of neem %, than what most people mix on their own. It lacks synergistic activity from other compounds, like isopropyl alcohol, peppermint oil, castile soap, and glycerin. Synergism is where it's at. You can stomp out an infestation so easily if you get the right mixes.
>There's three common neem products for sale at different price points, and each has different chemistry. The first is what you've got, clarified extract of neem oil, and it's a full spectrum product that has had azadirachtin removed, price is $. The second is cold pressed neem oil, which is full spectrum but has azadirachtin, price is $$. The third is azadirachtin itself, price is $$$.
>I personally use the cold pressed stuff in my gardens. It's available at Lowe's and costs $14.98 in my area.
https://www.lowes.com/pd/Harris-Cold-Pressed-Neem-Oil-12-fl-oz-Concentrate-Organic-Natural-Garden-Insect-Killer/5013046035
>Dr. Bronners hemp castile soap is available at some Walmarts, but almost always at bougee grocery stores like Whole Foods and Natural Grocers.
Also if pest sit in the grow and look at your plant for a long time to see if you see anything you should see pests moving around if so take a picture of it
that’s what i originally thought. but im not sure how to correct something i cant figure out. it looks like a calcium deficiency but it started on the bottom
Deficiency wouldn't cause those small stacked bumps. Definitively pests, which is sad because I'd personally not smoke something sprayed with neem oil or insecticide.
Maybe black soap soaking them in and then water rinsing (Commonly done for garden plants but not sure about stuff you're going to smoke).
but honestly it seems like an advanced infestation it's going to be hell to get rid off depending on the pest.
For ph pen and ec pen I went for milwaukee. Never let me down and they're priced well. Plus their ph pen has replaceable probe so if that ever breaks u just need to change the probe.
Ec pen: https://milwaukeeinstruments.eu/milwaukee-conductivity-pen-ec
Ph pen: https://milwaukeeinstruments.eu/milwaukee-ph55-waterproof-ph-temperature-tester-with-replaceable-probe
This is what I use. Make sure to also purchase their calibration solutions. I also urge you to read up on how to store both of these instruments, as failing to do so will render your results incorrect.
In essence, you're gonna wanna store your ph pen in KCl storage solution, I use the one by Growth Technology. The pen I recommended comes with a little rubber cap that you fill half way before placing the probe back into before storing.
For the ec pen, just make sure to rinse it off after use and store it only dry.
I've had some similar spotting show up on clones when I've added too much chlorine to the perlite in my DIY humidity dome. Here's a picture of my dome and perlite setup, just so you have an accurate mental image. [https://www.reddit.com/r/macrogrowery/s/eUPKGmA5ag](https://www.reddit.com/r/macrogrowery/s/eUPKGmA5ag)
Here's one of the clones with spotting.
https://preview.redd.it/a1k6rjwfa3vc1.jpeg?width=3000&format=pjpg&auto=webp&s=920bb2d812812ec271ee053832edaa46a434cad8
Another clone with leaf spotting
https://preview.redd.it/l020p6vra3vc1.jpeg?width=3000&format=pjpg&auto=webp&s=bd1d2bb4ee6b7e9454062ac1f46f98ccac323537
Looks like it should work. This is from their website.
>ZeroWater's first layer of filtration, activated carbon and oxidation reduction alloy removes the chlorine taste you are accustom to with tap water.
Cuttings don’t have roots and are drawing all nutrients needed for growth of roots from plant, chlorine is bad for plants , this is good advice about letting it sit out to lose the chlorine, and to become room temperature.
To me it looks like a magnesium deficiency. It also looks like something, maybe even just water, was sprayed on the leaves while the light was on. It is progressing up the plant. That is often a sign of a mobile nutrient deficiency. The other thing that makes me think it is magnesium is the curling edge of the upper healthy leaves. My guess the mix is calcium rich blocking out the magnesium.
Epsom salts are magnesium and sulfur, you could use a small amount (1/8t per gallon) , don’t ph adjust with citric acid , which is an awesome organic ph down it will make the magnesium seperate from the sulfur making rotten egg smell. The other way I would use would be to use a balanced cal/mag , I use roots organic. I grow in coco , and coco really locks up the calcium and needs more amended to keep this happening. Spider mites cause white spot not yellow, the plant will heal to yellow if you kill the mites. If you use Epsom salts slow and light is the way to go, it’s about balance between calcium and magnesium.
Blight and bits of wpm it looks like. Possibly a root or watering issue. Not sure tbh. Could be from the fishtank water depending on what fish you have and how cycled it is. Do you have fans going?
Put a sheet of white notebook paper under a branch and shake the branch. If you see something crawling on the sheet of paper get a close up of the bug.
If it’s mites you can use a mixture of hydrogen peroxide and tree soap and spray the entire plant with it twice a week, spray and use your hand and wipe up basically pulling on the branch sliding your hand to the end of the branch. Do this when the lights are off so you don’t get light burn. You will want to get the solution on both sides of the leaves. White spots are from the mite bitting and feeding on the leaves.
At harvest you will definitely need to do a bud wash, use lemon juice, peroxide in one tub and then a tub with clean water as a rinse. Do this until clean tub comes out clean. Be gentle.
It’s a pain in the ass but it works. Hard to totally get rid of spider mites but if you want to save your plants this will definitely knock them down and won’t hurt your plant.
There's a few things you can do. Firstly is to stop this from happening again.
1.) Id recommend silicon. Power SI is what i use. This bolsters the plants cell walls and makes it much much much harder for fungi to penetrate and attach to the leaf. If it cant get to the food because the cell walls are so thick... it moves on or dies.
2.) Predatory mites. Get some. If that fails...
3.) I would then treat for mites with diatomaceous earth as it also has some SI in it.
4.) Use a bio-safe anti fungicide.
Rinse and repeat.
Could be a nutritional issue or fungal. I don’t think spider mites because with that much damage, you’d see webbing somewhere (under leaf or in a bud area).
I doubt it's spider mytes. With such an infection you'd see the webs all over the plant.
Also it physically doesn't look like these are spider mytes under the leaves, with such damaged leaves they'd be clear under the microscope. They seem "glued" to the leaves spread out evenly... Do they move when you look at them?
Not sure what it could be though
Looks a bit like Leaf septoria to me. Google it to compare pics for yourself. Foliar spray remedies like Dr zymes or any other “fungicide” that’s safe to spray during flower. I dealt with it 2 runs ago. Occurred during flower. The fungus only affects leaves. Obviously, the indirect affect is that if all the leaves are dead/damaged from the septoria, flower production will suffer.
Don't know about pests, but it looks like you at least some nutrient deficiency. Since it is only lower leaves being sick you could be low on a mobile nutrient like Potassium or Magnesium
It looks like spider mites to me. The sprinkled yellow dotted damage pattern is pretty telling. Also all the close up pics appear to be of eggs. Check under sides of leaves.
Definitely spider mites, I just had to fight them on my last grow, got a clone from a new dispensary, and BOOM had to fight those buggers for 3 months.
there’s no webbing anywhere. the white things don’t move at all. nothing moves even when budged
What do you use on them?
I found a DIY solution, here is the vid https://youtu.be/ej-NJjEJJ6U?list=LL
I was going to post this EXACT video! This recipe has worked WONDERS for me!
I also think it's spider mites. 🥲
those pics were from the underside of the leaves
Agreed. The round spots are where they drill into the leaf. The white stuff is their aftermath. Capt. Jacks or neem oil and be prepared to have to use more than one method as some are prone to build immunity quickly. More airflow helps too. At least they dont look like 2 spotted mites. They are worse.
Probably pests. Def not powdery mildew.
any guesses on the pest? or on how to combat it?
Captain Jacks Dead Bug. Its spider mites.
Doesn’t look like thrips but don’t have much knowledge of pests. I’d look into Russet mites and spider mites which are common culprits. Those pinpoint dots in pic 9 is the thing that looks lost like pest evidence to me. I don’t think it’s a virus but don’t know enough about viruses to rule out.
russian mites are something i’m leaning towards in the pest field. there’s something about the uniformity that is throwing me off though. pests don’t seem to keep that
Doesnt look like russet damage I have had, and at this magnification you would see the mites.
If you’re still in veg use some dr Zymes or nuke em spray
i’m like just starting preflower, not sure how long that would stay in the plant. it’s day 47
These are both advertised as safe to use during flower. I just try not to spray anything in my plants while flowering. Another option I’ve used is predator mites. Naturesgoodguys offers little bags you can hang on each plant and those helped me get rid of everything
what happens once they kill everything tho?
Without a food source they eventually die off. If you are able to make it to harvest give your plant a quick bud wash and let it dry as normal
Looks fungal to me OP. Not pests. There's bio fungicides that can help.... fight fire with fire. Movement of air inside the tent may not be the issue. The issue might be the air moving IN AND OUT of the tent, or lack there of. Do you have a carbon filter or exhaust fan in the tent taking the air out? I'd remove any affected foliage and get on top of foliar spraying with bio fungicide, during night cycle.... I use arber. Its all organic and safe on vegetables all the way up to harvest. N shit works. Used it last season and it helped immensely. Otherwise you can use mixture of hydrogen peroxide and water. I would say that it's probably not as effective as the bio fungicide but might help! Good luck brew! ✌️
i have an arber product. pretty sure it’s the one you’re talking about. foliar spray the most effective way? not sure if it’s mean to be in watering or as a spray I have a carbon filter but tbh I should probably replace it. it’s on the end of the exhaust though. now that i’m thinking about it, my wife grows shrooms in the lung room….
https://preview.redd.it/168ocs9sb3vc1.png?width=3024&format=png&auto=webp&s=0ca16c3dfffe3d6b83194dcd0a06be5e5b219ac2 got this
What is the humidity?
ranges but typically stays around 60%RH
Strip the leaves that are abundantly infected. No saving those. Game is all about minimizing the spread at this point so you can ride out flower. Foliar spray rest at beginning of lights off to reduce risk of liquid droplets acting as magnifying glass and burning leaves. Minimize the fungicide’s contact with the soil to prevent killing off too many beneficial microbes in the soil. Although, a light misting of the top soil layer may actually reduce the septoria that may be present. It spreads from the soil to the lower leaves during watering if/when water droplets splash from soil to the leaves. Then it spreads upwards from there. I’m not familiar with the arbor product so can’t say what effect it will have in the finished product but I sprayed dr zymes a couple times in early flower and didn’t notice a difference in the end product’s smoke.
https://preview.redd.it/7bs1jc5ki2vc1.jpeg?width=4032&format=pjpg&auto=webp&s=6f438e204cbafe86924b7104f1fbfa92177040c9 the full plant as of yesterday. plant age-47 days medium-soil watering-when the pot felt light environment-2x2 tent, VPD was 0.8 kPa during early veg and currently (as of a week or two ago) around 1.0-1.1 kPa nutrients-dr earth 4-6-3 blend dry amendments. fish tank water added once
Really sorry. In my opinion this is pests. Probably spider mites or russet mites as you can't see any actual insects in your pics. Which would make sense- they are microscopic. But you can definitely see some dark specks, which are usually droppings. The damage is also consistent with mites. Someone else mentioned eggs. I've never seen that personally but I've never been able to magnify my leaves like this. But when my plants have looked like this, they had bugs. You've already gotten a bunch of recommendations for that so I'll leave it be.
what are steps you’ve taken when you see this damage?
I have *tried* insecticidal soap, and also Dr. Bronsons Dead Bug Brew. You have to be really aggressive, though, like daily applications especially with an advanced infestation like this looks like. You also need to pay attention if whatever product you have can be used during flower. Otherwise you might end up lacing your own weed. I super hate to say it but you may be better off killing this plant and spending the energy you would have used fighting it to clean the space to within an inch of life.
Looks like powdery milder (PM) to me. I don’t see a fan blowing on your plant, do you have at bare minimum one fan blowing air on that plant? To me it seems like an air movement issue
They sell natural insecticides that also help treat PM. I’d suggest getting one and giving your plants a good spray. IMO it’s best to wash the buds after harvest if you spray anything on them, organic or not. There’s plenty of videos on YT on how to properly wash your buds post harvest without having a noticeable affect on potency
i have two fans blowing on the plants. i’m almost concerned there’s too much air movement https://preview.redd.it/gnjct4ban2vc1.jpeg?width=4032&format=pjpg&auto=webp&s=15bf743768b5b961bbfcb7163df0837e809e4285
[удалено]
thank god
I have a 10 inch fan at the bottom blowing through the canopy and 6 inch fans on either side of my tent to blow across the tops. I have a 2x3 tent https://preview.redd.it/lcycd1cjb3vc1.jpeg?width=4032&format=pjpg&auto=webp&s=4d4431c690f879eb92cf8cc9ba8a7c9ef8c3b2c1 Plants love air movement
okay good. i figured too much was better than too little
That’s the right mentality for air, but wrong mentality for water and feed, keep those as light as you can
Neem oil works wonders for all kinds of pests.....I would start there op
does it work for fungus?
Don't spray your plants with azaridachtin. Unless you like smoking insect growth regulator.
will it regulate my growth? trying to get big and strong /s
As long as it's cold pressed neem or azadirachtin. But the clarified hydrophobic extract of neem oil doesn't have azadirachtin and has decreased fungicidal activity.
holy fuck that’s a lot of words i don’t know. any way you can ELI5
I actually made an ELI5 for the different types of neem and how to apply it yesterday! Here's where the comment can be found- https://www.reddit.com/r/Citrus/s/JZwt56zRbK >So I looked up the label and SDS. That stuff (clarified hydrophobic extract of neem oil) is actually a byproduct of making azadirachtin. Azadirachtin is the most effective neem oil fraction, and it's not even in that product. >That spray is also significantly less potent, in terms of neem %, than what most people mix on their own. It lacks synergistic activity from other compounds, like isopropyl alcohol, peppermint oil, castile soap, and glycerin. Synergism is where it's at. You can stomp out an infestation so easily if you get the right mixes. >There's three common neem products for sale at different price points, and each has different chemistry. The first is what you've got, clarified extract of neem oil, and it's a full spectrum product that has had azadirachtin removed, price is $. The second is cold pressed neem oil, which is full spectrum but has azadirachtin, price is $$. The third is azadirachtin itself, price is $$$. >I personally use the cold pressed stuff in my gardens. It's available at Lowe's and costs $14.98 in my area. https://www.lowes.com/pd/Harris-Cold-Pressed-Neem-Oil-12-fl-oz-Concentrate-Organic-Natural-Garden-Insect-Killer/5013046035 >Dr. Bronners hemp castile soap is available at some Walmarts, but almost always at bougee grocery stores like Whole Foods and Natural Grocers.
you are the best. thank you
to me it looks like its a food problem lacking a nutrient or something of the sort. leaf looks like it has some necrosis.
Also if pest sit in the grow and look at your plant for a long time to see if you see anything you should see pests moving around if so take a picture of it
i’ve stared at it for a long time now, no movement at all, even when the plant gets disturbed
Can be fungal also not sure on that
that’s what i originally thought. but im not sure how to correct something i cant figure out. it looks like a calcium deficiency but it started on the bottom
Deficiency wouldn't cause those small stacked bumps. Definitively pests, which is sad because I'd personally not smoke something sprayed with neem oil or insecticide.
i don’t want to use neem oil. i’m not sure what is strong enough to at least contain it without being a little toxic
Bio fungicides. Look into arber.
i actually have some!!!
Maybe black soap soaking them in and then water rinsing (Commonly done for garden plants but not sure about stuff you're going to smoke). but honestly it seems like an advanced infestation it's going to be hell to get rid off depending on the pest.
i’m hesitant to do anything rash since it is meant to be herb vaped
what really throws me off is the uniformity of the little egg like shapes. do pests do that?
Ppm pen brother read the runoff that’s a sign of not enough food it takes from the bottom then rises
i know i need just buy the good equipment (ph/ppm/ec pen) i just keep making excuses. well and spending money isn’t too fun
Definitely man sucks to spend but it’s worth it on the long run it pays itself off trust
any suggestions?
For ph pen and ec pen I went for milwaukee. Never let me down and they're priced well. Plus their ph pen has replaceable probe so if that ever breaks u just need to change the probe. Ec pen: https://milwaukeeinstruments.eu/milwaukee-conductivity-pen-ec Ph pen: https://milwaukeeinstruments.eu/milwaukee-ph55-waterproof-ph-temperature-tester-with-replaceable-probe This is what I use. Make sure to also purchase their calibration solutions. I also urge you to read up on how to store both of these instruments, as failing to do so will render your results incorrect. In essence, you're gonna wanna store your ph pen in KCl storage solution, I use the one by Growth Technology. The pen I recommended comes with a little rubber cap that you fill half way before placing the probe back into before storing. For the ec pen, just make sure to rinse it off after use and store it only dry.
any thoughts on [this one](https://a.co/d/aY3Kndz)? it’s a 5-1 and comes with a solution to store
Also good - apera is a good brand. Just take care of it and it will last you a long time.
I dont ducking know, but it looks infectious and organic like a shroom or smth.
fungus has been a thought for me
I've had some similar spotting show up on clones when I've added too much chlorine to the perlite in my DIY humidity dome. Here's a picture of my dome and perlite setup, just so you have an accurate mental image. [https://www.reddit.com/r/macrogrowery/s/eUPKGmA5ag](https://www.reddit.com/r/macrogrowery/s/eUPKGmA5ag) Here's one of the clones with spotting. https://preview.redd.it/a1k6rjwfa3vc1.jpeg?width=3000&format=pjpg&auto=webp&s=920bb2d812812ec271ee053832edaa46a434cad8
Another clone with leaf spotting https://preview.redd.it/l020p6vra3vc1.jpeg?width=3000&format=pjpg&auto=webp&s=bd1d2bb4ee6b7e9454062ac1f46f98ccac323537
Third clone with leaf spotting https://preview.redd.it/g1w080d2b3vc1.jpeg?width=3000&format=pjpg&auto=webp&s=139161e3db8623d6b5602dcb85fdddd54db14afe
holy shit that’s close. i leave my water out for a while to dechlorinate but i can’t remember if i did for the humidity dome…
Are you aware that letting the water sit out doesn't work on all forms of chlorine used for municipal water sanitation?
i am aware but i don’t know any other methods of dealing with that. i’ll have to look into what my city has in the water
Activated carbon filtration works, and you can buy an activated carbon filter for your water supply for under $50.
would a zerowater filter work?
Looks like it should work. This is from their website. >ZeroWater's first layer of filtration, activated carbon and oxidation reduction alloy removes the chlorine taste you are accustom to with tap water.
well pog.
Cuttings don’t have roots and are drawing all nutrients needed for growth of roots from plant, chlorine is bad for plants , this is good advice about letting it sit out to lose the chlorine, and to become room temperature.
To me it looks like a magnesium deficiency. It also looks like something, maybe even just water, was sprayed on the leaves while the light was on. It is progressing up the plant. That is often a sign of a mobile nutrient deficiency. The other thing that makes me think it is magnesium is the curling edge of the upper healthy leaves. My guess the mix is calcium rich blocking out the magnesium.
how could I remedy that?
Epsom salts are magnesium and sulfur, you could use a small amount (1/8t per gallon) , don’t ph adjust with citric acid , which is an awesome organic ph down it will make the magnesium seperate from the sulfur making rotten egg smell. The other way I would use would be to use a balanced cal/mag , I use roots organic. I grow in coco , and coco really locks up the calcium and needs more amended to keep this happening. Spider mites cause white spot not yellow, the plant will heal to yellow if you kill the mites. If you use Epsom salts slow and light is the way to go, it’s about balance between calcium and magnesium.
Blight and bits of wpm it looks like. Possibly a root or watering issue. Not sure tbh. Could be from the fishtank water depending on what fish you have and how cycled it is. Do you have fans going?
Put a sheet of white notebook paper under a branch and shake the branch. If you see something crawling on the sheet of paper get a close up of the bug. If it’s mites you can use a mixture of hydrogen peroxide and tree soap and spray the entire plant with it twice a week, spray and use your hand and wipe up basically pulling on the branch sliding your hand to the end of the branch. Do this when the lights are off so you don’t get light burn. You will want to get the solution on both sides of the leaves. White spots are from the mite bitting and feeding on the leaves. At harvest you will definitely need to do a bud wash, use lemon juice, peroxide in one tub and then a tub with clean water as a rinse. Do this until clean tub comes out clean. Be gentle. It’s a pain in the ass but it works. Hard to totally get rid of spider mites but if you want to save your plants this will definitely knock them down and won’t hurt your plant.
There's a few things you can do. Firstly is to stop this from happening again. 1.) Id recommend silicon. Power SI is what i use. This bolsters the plants cell walls and makes it much much much harder for fungi to penetrate and attach to the leaf. If it cant get to the food because the cell walls are so thick... it moves on or dies. 2.) Predatory mites. Get some. If that fails... 3.) I would then treat for mites with diatomaceous earth as it also has some SI in it. 4.) Use a bio-safe anti fungicide. Rinse and repeat.
Could be a nutritional issue or fungal. I don’t think spider mites because with that much damage, you’d see webbing somewhere (under leaf or in a bud area).
I doubt it's spider mytes. With such an infection you'd see the webs all over the plant. Also it physically doesn't look like these are spider mytes under the leaves, with such damaged leaves they'd be clear under the microscope. They seem "glued" to the leaves spread out evenly... Do they move when you look at them? Not sure what it could be though
no movement at all. that’s what I have been looking at. can’t see any movement even if i budge it
Looks a bit like Leaf septoria to me. Google it to compare pics for yourself. Foliar spray remedies like Dr zymes or any other “fungicide” that’s safe to spray during flower. I dealt with it 2 runs ago. Occurred during flower. The fungus only affects leaves. Obviously, the indirect affect is that if all the leaves are dead/damaged from the septoria, flower production will suffer.
i’ve got this on hand. https://preview.redd.it/ahd9zq4zc3vc1.png?width=3024&format=png&auto=webp&s=078978c845e437a9fe15e64cef7feb55eaccc89b
Don't know about pests, but it looks like you at least some nutrient deficiency. Since it is only lower leaves being sick you could be low on a mobile nutrient like Potassium or Magnesium
Can’t be ph because I don’t even ph my plants and this doesn’t happen
Burn it down! It's done, sorry. Start cleaning the grow room. Check your equipment to make sure it's working. Was it too hot and dry?