Cerith survives crazy conditions

[Steve973]

After a problem with dinoflagellates, I tore my tank down and kept the inhabitants in a couple of buckets (with circulation and heat) while I was tearing the tank down and rebuilding it. I got everything set back up and I put all of the inhabitants back, or so I thought. Well, two weeks later, I find a cerith snail in some water left over in one of the buckets that hasn't had circulation or heat in two weeks, and *the snail survived*! There must have been quite a bit of evaporation (so, very high salinity levels) and toxins left over from the dinoflagellates, but it adjusted quickly to the aquarium and it is now happily consuming diatoms.

[Jellyingabout]

It probably just pulled in its operculum and slept through the horror. Many snails can actively remove wastes and toxins from their cavity waters when closed up, particularly intertidal species.

[amphipod]

I'm actually not that surprised of toxin survival, most dinoflagellates toxins (for the ones with toxins) aren't so strong on some snails, and bivalves not to mention thousands of plankton and other animals, every toxin has a little different range of affected animals. And hyper salinity by evaporation is a very gradual killer for animals like that, that's still kinda impressive if there was huge amounts of evaporation.