I am new here today and I am new to the aquarium community. We have four goldfish and a blue snail. At the present time we have an orange goldfish named Nemo, a white goldfish named Whitey, a white and orange goldfish named Bubbles, a black goldfish named Blackie, and a blue snail named Patches. Tonight when we came home the snail was floating in the tank, I smelled him and it did not smell bad, so I put it back in the tank and will keep monitoring. Maybe it could sense the earthquake today! Any oither suggestions?