First post, TIA for any information. I have a 24g Cube with 4 neon tetras, 5 male orange endlers, 1 neon dwarf gourami, 2 small type corys, 1 bamboo shrimp, 1 vampire shrimp, and 2 male fancy tail guppies. Tank has been very stable with these inhabitants for several months now. Question is: one...