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Re: [APD] FW shrimp and iodine
On 5/26/07, Stuart Halliday <stuart at mytriops_com> wrote:
> I believe S. Hieber wrote this email section below:
> > While calcium? Their skeletons are chiton.
> Because the shrimp will die if placed in soft water? They seem to need
> calcium for something.
Arthropod shells are composed of a small amount of calcium carbonate
in a matrix of chitin and proteins. The percentage of calcium varies -
barnacles have the most, crab and shrimp a much smaller amount, and
insects the least.
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