| Re: How often do fire cleaner shrimp shed?
Iodine is only need in very minute amounts. It is called a trace element. It is poisonous in larger amounts (this is why it is used to sterilize for surgery). It is neccessary for shrimp and all animals in very minute amounts. Shrimp are able to incorpate excess iodine into their exoskeleton and then shed to get rid of it. This has led to the belief that it helps them molt. It really causes them to molt to rid their bodies of toxic amounts.
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