Hi im working on a new tank, mainly for a crab or two and maybe one fish. I already have some obsidian in my other tank and that did not change the water much, if at all. I was wondering if anyone else has experimented with other odd rocks/crystals and had good or bad experiences. What i wanna do is put a fairly big chunk of amber in there and maybe some fossils as well. Any ideas what that might do to the tank?
thanks!
thanks!