02-04-2007, 12:24 PM
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New to forum need help with Columbian Shark
I've had my 55 tank for over a year with great success. I got most of my info and help from Dr.s Foster and Smith as well as my equipment. So, my tank is generally in great shape, clean water, clean substrate, apparently happy fish.
In ignorence of compatability, I recently purchased a 6" Electric Catfish and placed him in my community tank, after being in an iso tank for a week. The next morning my normally VERY active pair of 7" Columbian Sharks (black-fins) were completely subdued and virtually immobile. One recovered fine, but the other appears to have a broken back. He wiggles his tail fins side to side but when he moves through the water (rare movement at best) he swims with a 30% arch in his midsection. Kind of banana shaped. Like his tail is only reacting to the muscle movement of his front half. This is going on 3 days now. I don't know if he'll recover, if he can survive this damage, what. Anyone have any advice?
Obviously, the Cat is now in his own tank as, I found through research, he is a fish best kept alone.