I had 3 guppies and a frog in a ten gallon tank. Ammonia, Nitrite, Nitrate, and PH levels are perfect. The fish seemed to be happy until they developed open sores on their bodies and died.
Does anyone know what this disease is and how to treat it?
It looks like Furunculosis (open lesions with tissue swelling), which can be treated with erythromycin (usually comes in powder form). I've seen it available at a bunch of local fish stores; hope you find it.
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