General Cure + Antibiotic?

[Drew1900]

This morning I began treating 2 clownfish with General cure and one of the has developed cloudy Popeye in one eye and seams to possibly have some mild fin rot on its tail fin. Antibiotics I have on hand are metroplex, Kanaplex, furan-2 and Erythromycin. Would any of these be safe with general cure? @Humblefish

 

[Jay Hemdal Verified Community Expert]

I wouldn’t use erythromycin, it can take out your biofilter, and is less effective for gram negative bacteria which are the cause of most external bacterial infections. If it were my tank, I’d use the Furan 2...
Jay