Ok, i got a ton of sand from my reef tank.. my kid is crying (literally) for glowfish. I got a 29 laying around, Im planning on using the sand, a bunch of plants, and rocks. ok will the sandbed (2") work with a freshwater tank? I got one in the reef tank now. Im thinking about using snails to stir up the sand (what kind)?? will the aragonite raise the calcium and ph level to high for danios or tetras? I am hearing arguments for and against it.. all i know is I can get him into it, then move him to reef soon..