07-02-2009, 09:33 AM
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fish with swollen areas, like tumors?
A couple of weeks ago, i visited a friend and she has a couple of tanks at her place. In a 20 gallon long, she has several fish that seem to have tumor-like growths, that is one area of the fish would be swollen, like a ball. She told me that it started with one fish and now almost every fish in the tank has it.
My first though was parasite, but i don't know any. The fish are not exhibiting any normal behavior. She also moved a birchir from the 20 gallon to a 50 with chiclids and the birchir has that same lump in its side (looks super awkward). Anyway i was wondering if anyone had any ideas on what this could be and how to treat it?