Fritz Maracyn Two

Maracyn® Two powder is an antibiotic for aquariums effective against various pathogenic bacteria and some fungal infections.

• The description claims it is effective against gram-negative pathogenic organisms.
• The description claims it may be effective against some gram-positive and fungal infections.
• The description claims it provides relief from bacterial infections like fin and tail rot, popeye, septicemia, and dropsy.