I have 4 nassarius snails, 2 emarald carbs, a diamond goby, 1 scarlett hermit, 1 Peppermint Shrimp, and 2 (down from 6) Astraea Snails. I have found 2 dead Astraea Snails each of the last two days. I came home from work today to find another dead lying at the bottom of my tank. Has anyone ever...