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Re: snails dying... calcium?

It sure acts like a toxin but it is the same water the snail-friendly
tanks are getting.  The only other new addition has been a couple of
jobe ferm fertilizers sticks.  

David Ozenne wrote:
> Another possibility is something toxic, probably copper or other heavy
> metals.  Snails and daphnia can both be quite sensitive to these.  When
> I've seen calcium deficient snails, they don't die quickly.  Instead,
> they get kind of white and crusty and stop growing.
> David Ozenne
> Berkeley, CA