Jaysn, if you are talking about the tank, it just takes a little work and a lot of patience. I will gladly tell you exactly what I dose and stuff if you want it. If you are talking about the cave, it is ceramic and I made it in my dad's shop.
The primrose is simply becoming a pain in the neck! It has grown another 6 inches since the 9th and shows no sign of slowing down. Gonna have to trim and replant again but after that it is trade time as my crypts are gonna be thinned soon also as well as my pearlweed.
Is nice to finally be bale to grow any plant I put in there and have it grow fast enough to actually be able to scape with it instead of so slow I get bored with it.
My favorite thing until I get pressurized and a larger tank, Excel!