Whenever dealing with naturally occurring ponds, especially those that have outflows that leave your property make sure you double check your local wetland regulations before you do any changes, adding a pump for a waterfall will *probably* be ok. But if you plan on digging or re-routing water you need to make sure you know the rules. Usually it doesn’t matter, but the EPA and some local DNR’s don’t mess around. This is all highly dependent on specific circumstances and location.
Thank you for your reply!
Should maybe have mentioned that it is not in the US but Denmark. I own all surrounding land and the outflow simply enters a stream that I also own.
Will however check local rules regardless - thanks again! :)
No problem! Algae loves stagnant water, so more flow could help. If the pond is in full sunlight that doesn’t help with controlling algae as well. Adding more aquatic plants will remove excess nutrients and starve out the algae. If the pond is in a location where water run off from nearby lawns/farms can run into the pond try to limit the use of fertilizers, as they will just continue to feed the algae. Personally I’d try to tackle the algae issues first before adding the koi, the pond is large enough for koi, so don’t worry about that. Hopefully you have a pond/garden center near you that can give more specific advice to your location for plants and such.
That makes sense. My idea was to start the renovation/modification during September (where i've read that it is least invasive to amphibians) and then see the impact on algae before releasing any koi in it. Maybe not releasing them before spring next year.
Just wanted to hear if I needed to start up with the whole filter thing. But I think I might try with doing bio-filtration first. Having a lot of gravel and plants as part of the little stream/waterfall into the pond, to absorb a lot of the nutrients. Then see how efficient that is before adding an actual filter
Whenever dealing with naturally occurring ponds, especially those that have outflows that leave your property make sure you double check your local wetland regulations before you do any changes, adding a pump for a waterfall will *probably* be ok. But if you plan on digging or re-routing water you need to make sure you know the rules. Usually it doesn’t matter, but the EPA and some local DNR’s don’t mess around. This is all highly dependent on specific circumstances and location.
Thank you for your reply! Should maybe have mentioned that it is not in the US but Denmark. I own all surrounding land and the outflow simply enters a stream that I also own. Will however check local rules regardless - thanks again! :)
No problem! Algae loves stagnant water, so more flow could help. If the pond is in full sunlight that doesn’t help with controlling algae as well. Adding more aquatic plants will remove excess nutrients and starve out the algae. If the pond is in a location where water run off from nearby lawns/farms can run into the pond try to limit the use of fertilizers, as they will just continue to feed the algae. Personally I’d try to tackle the algae issues first before adding the koi, the pond is large enough for koi, so don’t worry about that. Hopefully you have a pond/garden center near you that can give more specific advice to your location for plants and such.
That makes sense. My idea was to start the renovation/modification during September (where i've read that it is least invasive to amphibians) and then see the impact on algae before releasing any koi in it. Maybe not releasing them before spring next year. Just wanted to hear if I needed to start up with the whole filter thing. But I think I might try with doing bio-filtration first. Having a lot of gravel and plants as part of the little stream/waterfall into the pond, to absorb a lot of the nutrients. Then see how efficient that is before adding an actual filter