I got out of the hobby 5 years ago. previously I had 7 tanks that I kept for years ranging in size from 150 gal to 20 gal. I have started all over again with a 29 gal housing 7 fish. 2 Green lantern platys, 3 mickey platys, 1 rainbow platy, and a dwarf blue gourami. I have 3 snails in there as...