[GSAS-Member] cuttlebone or not

[naturalart <naturalart@earthlink.net>]

Cuttlebone is not really bone but rather shell. cuttlebone come from squid which are 'directly' related to a relict group of animals called ammonites. The nautilus is one of the two remaining living species in this group. Maybe someone can explain the chemistry on this but squid die by the thousands regularly in the ocean. You are talking about freshwater shrimp, so obviously it will harden your water, but it shouldn't be toxic. Personnally I think there are better ways to raise your hardness or alkalinity.

Clay A.
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