Let me just start off by saying my snails seem to be pretty lethargic.... I mean even for snails..... but I'm worried becuase I found a nitrate spike in my water and eventually discovered a dead snail..... can anyone give me any advice on identifying dead or dying snails????? I don't wanna kill 'em but I don't want them risking the rest of my tank either..... the majority of my snails are golf ball size and I don't want to risk that much waste if 'ya know what I'm sayin.... any help would be appreciated....