i bought a 4" albino oscar about 6 weeks ago.he was missing a fin on one side.the store thought it would grow back.he is now almost 6" and there is no sign of a fin.do they grow back?he swims fine with one and he acts normal. thank you
Is the area where the fin should be fuzzy/cottony or inflamed at all? Any red streaking leading away from the area? If so your fish probably has finrot and needs antibiotics asap. If properly and promptly treated the fin should grow back just fine and more importantly the oscar will survive. Finrot can be fatal! If there are no signs of infection or damage and the fish is simply missing a fin, I'm guessing it is a birthdefect, or a loss due to an old injury? In which case, the sweetie will be forever finless, but if he is acting just fine and can swim and forage adaquately you are very lucky to have a unique fish. Think of it as a charming idiosyncracy, kind of like a 3 legged dog :)
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