Treating Columnaris

[PhaidOut]

I have a tank of endlers and red cherry shrimp. I have had this particular tank set up just this way for a year and a half and suddenly I have an outbreak of columnaris. Probably brought on by a combination of a power outage, vacation neglect and some overcrowding... (too many of both)

So now for the dilema - how do I treat the columnaris and not wipe out the RCS? Any clues? Formalin? Maracyn?

Edit: Not sure what I was thinking... Formalin would most likely kill the RCS. Maracyn though?

Thanks

[badflash]

I've used Maracyn without hurting the shrimp.

[zapisto]

and take care of your temp
flexibacter love high temp