Maracyn Powder Freshwater is a fast-dissolving and quick-acting antibiotic (Erythromycin) recommended for the treatment of body fungus, fin and tail rot, popeye, gill disease and secondary infections. Erythromycin is a broad-spectrum antibiotic which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. When used at the recommended dosage Maracyn maintains a therapeutic level of the drug within the aquarium.... More Info
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