Hi all. I woke up this morning to a dead guppy. I have no idea why she died and I am worried about the rest of my fish. The water this morning (I check daily) was 0 amnonia and 0 nitrites. I did not test nitrates but it has been consistent at around 30 (my tap has nitrates in it). My ph is 8.2. I am not overstocked (6x diamond tetras, 2x snails, 2x shrimp, 2x guppies). This was a new fish, just added on Sunday afternoon. She was added by herself and acclimated slowly, due to my ph. I didn't notice her acting strange at all and she looked fine. The only odd thing was that she got stuck in one of my fake plants on Monday, and no other fish has had that happen. I woke up this morning to find my ivory snail on top of it.. at first I thought it was a ghost shrimp and then I realized that the guppy's tail was missing. None of my fish have a nipping problem, so I have to assume that happened after death but I don't know. The other fish are acting fine.