Join Date: May 2008
Location: San Francisco, CA
Sorry to hear that you have that mysterious illness too.
I had a rummynose who out of nowhere, got it. It didn't spread to other fish though, he carried it for a long time, up until I got rid of him a couple weeks ago (sold my school off). I did notice that overtime, his swimming behavior changed. Instead of gliding through swiftly, he could still swim fast, but his body movement turned into like a shark going left and right. He ate normally, behaved normally (aside from changed swimming style) and lived just fine. I think eventually, he started getting fin rot or some sort though. Not too drastic, but the fin rot might explain the changed swimming style...
I've had it before on a different rummynose, previous to the one I mentioned above. That one disappeared within a week or two, so I was kinda expecting the same for the 2nd time I got it. But it never did. I didn't treat either of them, so I'm really clueless to what it is.
It could be bacteria, if I had to choose a type. I would try upping the temp and dosing salt as if it were ich.
As for catching cardinals, I find them much easier to catch than rummies! You can also just wait till night time when they sleep. Haha...
If you can QT fish though (which I know you can't right now, but if!) you can take out all the fish and medicate them in a different tank. Turn the heat up in the maintank to 78 degrees or higher. Within 2-3 days, all of the ich in there should be dead. Should take less than 2 days really, but just to be safe ;-)
Ich can't live without a host and with temps as high as 78, they plop dead pretty fast due to a freakishly sped up metabolism.
I do this "scoop and medicate" method when I have inverts in the tank and I'm too impatient to do the salt treatment. Since salt treatment takes about 2 weeks while chemical meds only take 5-7 days.