Red Marks on Green Chromis

[Frogger]

Originally Posted by LifeIsGreat

I've heard that uronema stays in the tank without a host fish.

Uronema is a “free living” parasite which does not require a fish host. So, going fallow will not eradicate it. Most fish seem protected from it via their natural immune system. There is a possibility that Metronidazole may work. At certain concentrations it is apparently reef safe.

Likely the only way to manage the pest now is to have healthy fish, low stress, and high biological diversity. Avoid Chromis. Unfortunately adding fungicides or antibiotics (metro) to your tank will not help with the diversity.

[LifeIsGreat]

If you spot the horrible uronema disease in the first day you can possibly beat it with this method.

[scilover]

Looks like your green chromis had uronema marinum as there are red sores seen on the chromis. Well, its a bit hard to treat but there possible treatments such as Metronidazole, acriflavine, Chloroquine phosphate and copper. But then I suggest you to put your fish on different tank a week or two.