Broad-spectrum liquid antibiotic features an innovative time-release delivery system to ensure effective treatment. Fritz Aquatics Mardel Biospheres Maracyn Plus employs revolutionary Biospheres technology that delivers the antibiotic directly to the fish. Multi-layered encapsulated antibiotic spheres attach to the fish and break down one layer at a time releasing the antibiotics in a controlled regulated manner.
Maracyn Plus contains two powerful antibiotics, Trimethoprin and Sulfonamide for the treatment of bacterial infections, mouth fungus, popeye, dropsy (swollen body, protruding scales), ulcers, and fin and tail rot. For use with ornamental fresh and saltwater aquarium fish. 8 oz Maracyn Plus treats 236 gallons. Made in USA.
NOTE: Maracyn Plus should not be used in conjunction with any other antibiotic treatments.
Learn how to minimize potential outbreaks and maximize aquarium fish health with Quarantine and Hospital Tanks.
Shop all Aquarium Medications.
Please click on "More Information" for instructions.