05-06-2013, 10:58 PM
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How are things going in your tank? I have columnaris (almost 100% sure) in my 55 gallon tank, and I've had three outbreaks of it. Every time I thought it was gone, it came back, sometimes as much as 3 months later. I take a fish out the second it starts showing signs of illness ( staying by itself, not eating, lethargic ) and treat in a hospital tank with Furan 2 and Kanaplex. Almost every one that I've tried to treat has died. Meds don't seem to help at all. Most of the time it kills quickly (within days) but I've had a few that hung on and looked like crap for a week or two before finally expiring.
Now that the weather is warming up, I was fearing another outbreak, and sure enough, I've lost 5 fish just recently. It seems no fish is immune. I'm not overstocked and do religious 30% water changes weekly. Yet they continue to die, and I think its from two fish I got in the beginning of fish keeping, and didn't quarantine them. I think they brought it in, and now I CANNOT get rid of it. I've thought seriously of breaking the tank down and bleaching everything, but I've heard that sometimes even THIS does not work. Plus, the fish I have remaining could be carriers, thus I'd be contaminating the tank all over again when I put them back in. I'm at a loss, and I feel your pain. This disease is the most horrible, nasty disease imaginable. I hate it! People, believe it when you are told to quarantine. It the best prevention you can practice. One fish with columnaris can render your tank useless forever. I've even read that its present in all tanks naturally, and only strikes when fish are stressed or their immune system is compromised. Seems that the jury is still out on that. But my fish have not been stressed, and so many REALLY healthy ones of mine have died within 2 days of the first signs.