sorry, i completely forgot to respond, got busy....lol water depth is up to you. but yes, you will need some sort of substrate in the water. so factor that into the equation, at least an inch. my mantella tank has an inch of soil and an inch of substrate on each aquatic level. but you can most certainly go with just an inch of substrate.





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That's why I said 'seem familiar?' lolI just want a simple background that has a few pots in it for plants. I'm going to have the water for the stream coming out of the substrate (outflow hidden by plants) so I don't need to worry about tubing and such.
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