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Re: Aquatic Plants Digest V3 #77

Could the snail shells be getting this condition due to the c02 in the water? 

>Date: Fri, 6 Feb 1998 10:03:06 -0500 (EST)
>From: Christopher Clubine <cclubine at yorku_ca>
>Subject: Re: Call for Obs/deficiency symptoms
>> *While not strictly a plant deficiency, I have wondered if when my
>> ramshorn snail shells get streaky, or even turn pale/ whiteish, that is
>> a symptom of something that could warn of a plant deficiency too?  Any
>> ideas? - Chris
>I've noticed ramshorn snails' shells getting very fragile and brittle and
>have assumed this to mean Ca deficiency. However the plants seem fine so
>I conclude that the snails probably have a higher demand for Ca.

Calvin Chin