Mardel Maracyn

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$12.74
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$12.74
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  • Treats bacterial infections
  • Safe for aquarium plants
  • Safe for shrimp, snails, and other invertebrates

Mardel Maracyn® is a specially compounded broad-spectrum antibiotic (erythromycin) which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. It was developed for complete but gradual dissolution in water. It is primarily effective against gram-positive pathogenic organisms. Symptoms of clamped fins, swollen eyes, heavy or rapid breathing, patchy coloration, change in swimming behavior or corner-hiding can be signs of possible bacterial infection.

The savings come in the 24-count package or larger over the traditional API Erythromycin. Each packet treats 10 gallons. The 60-gram bulk container treats 1,000 gallons. We recommend using an air stone in the aquarium when treating with Maracyn.

Customer Reviews

Based on 402 reviews
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(377)
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(6)
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C
Chance h.S. (Madison Heights, VA, US)

Mardel Maracyn

C
Cheryl W. (Portland, OR, US)
Worked as Advertised

After failing aquarium salts and Pimafix/Melafix, I resorted to antibiotics. The fish survived and thrived.

M
Mike G.
Fast Shipping

Very fast shipping!

K
Ky D. (Lynnwood, WA, US)

Mardel Maracyn

D
Donald S. (Buffalo, NY, US)

Great service and a good price.