Since all but one of my gups died in this particular tank, I want to clean it without having a recurrence...due to the virility of this particular nasty, I wanted to do better than just really hot water. I have filled the tank with bleach water, replaced all plastic plants, and have ran the tank with the bleach water for 3 days now. Surely this would be sufficient to kill this disease?!? This is the first time I have dealt with columnaris, thank god!, so I am kinda anal about wanting it clean...I do not ever want to see this again! LOL. Anyone have any experience cleansing out nasties? I guess I have been lucky up to now, and the few illnesses I have dealt with have generally responded well to extra care and medication.,(or salt if applicable). And before anyone freaks on me, I have cleaned things and tanks before with bleach and it has not killed one single fish ( of course, none were in it at that time, and all said articles were rinsed well clean of bleach before they were reintroduced)

Anyones experience with this sort of thing would be greatly appreciated. BTW- gups water conditions were--pH 7.4, ammonia, nitrites, nitrates immeasurable, temp 78 degrees. This is pretty irrelevant to the question, but someone always seems to ask, at least in usenet...LOL