So for the past week or so I've found my snail floating around the aquarium. He's still alive but doesn't seem to be moving around a lot. I've placed him under a branch just to hold him in place and he does move from that spot. However in the morning I find him floating again. Today I put him in a shallow dish with water and an algae wafer to see if he eats. He moved around but didn't eat (I think). I want to help but don't know what to do. Any ideas?