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Re: Aquatic Plants Digest V3 #71

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.