Terrible Advice Tuesdays (T.A.Tues): A shrimp with an isopod should be removed from your tank because the isopod can attack your fish.
The rest of the story: This advice has a small bit of truth to it. Certain types of isopods – Cirolanid Isopods- can attack fish.
However, shrimp carry Epicaridean Isopods which won’t attack fish. In fact, these isopods aren’t overly harmful to the shrimp other than they can reduce the number of eggs an infected shrimp produces. (For those of you that have my Fish Disease & Quarantine guide, see page 85 for a full explanation on the different types of Isopods).
You’ll know if a shrimp has an Epicaridean Isopod as it will have a tan or white blob on its body. And unless you have very steady hands, a whole lot of experience and want to breed the shrimp, just leave the Isopod on the shrimp. Your shrimp will be just fine with the hitchhiker.
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