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Re: Fish parasite

> Subject: Fish parasite or 'aquatic scale insect'
> I cleaned my Magnum canister filter last night and noticed numerous small
> bumps on the inside of the filter body. It is about 1/16 in in diameter,
> somewhat oval in shape and mobile. When I observed it under the dissecting
> scope, it looked exactly like a terrestrial scale insect or more like a
> miniature abalone, with a shell and a slug like body underneath. Does
> anybody know what it is ?

Sounds to me like freshwater limpets.  I have them, and they are very
tiny.  If they are indeed limpets, you have nothing to worry about. 
Though you would be able to kill them with a snail killin product (like


pearlsco at u_washington.edu
The more people I meet, the more I like my plants.