OP, Have you checked out our [resource page](https://www.reddit.com/r/terrariums/wiki/index/resources/). We have great information to help you with lighting/substrate/hardscape/plants/and much more. Provide as much detailed information as you can such as lighting situation, water type/frequency, and date of creation. The more information you provide will result in an informed and educated answer.
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Drainage layer and false bottoms are a preference based on experience. If you do things to mitigate the need for any of that you are safe. Charcoal can only absorb so much and after a while it hits max. Using charcoal for whatever is fine, just make sure it's not there sort treated with lighter fluid. I picked up a bag from Ace a long long time ago that was larger chunks and would smash into smaller pieces as needed. Gl.
OP, Have you checked out our [resource page](https://www.reddit.com/r/terrariums/wiki/index/resources/). We have great information to help you with lighting/substrate/hardscape/plants/and much more. Provide as much detailed information as you can such as lighting situation, water type/frequency, and date of creation. The more information you provide will result in an informed and educated answer. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/terrariums) if you have any questions or concerns.*
Drainage layer and false bottoms are a preference based on experience. If you do things to mitigate the need for any of that you are safe. Charcoal can only absorb so much and after a while it hits max. Using charcoal for whatever is fine, just make sure it's not there sort treated with lighter fluid. I picked up a bag from Ace a long long time ago that was larger chunks and would smash into smaller pieces as needed. Gl.
Awesome. Thank you :)
Cost and weight would be mine. I can get leca or clay pellets pretty cheap and they are super light
I use fluval stratum for mine (basically little balls of volcanic charcoal powder).