Fritz Aquatics
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Fritz 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.
For the 8-count and 24-count boxes of Maracyn, the medication comes in individual packets where each packet treats 10 gallons of water. When treating with Maracyn, we recommend using an air stone in the aquarium, which may temporarily cause excessive foaming at the water surface.
One complete course of treatment will take 5 days. Treat for the full course of treatment even if visible signs of infection or illness disappear.
— Day One through Day Five: Each day, add contents of one packet per 10 gallons of water to be treated. For the bulk jar, add 1 level scoop (approximately 1 gram) per 10 gallons of water each day.
— Day Six: Perform a 25% water change. If necessary, a second full course of treatment may be performed starting on Day Seven.
