I have all these ideas running through my mind. I love my planted 40g, but my new 135 will house my BPs. The tank is 24" tall so light penetration will change. I'm thinking of making some sort of ledge and using large pots for my amazon swords, bacopa, and java fern. The idea is to make a ledge and use the space under it for caves that the fish can use. Any ideas on how to build the above idea?