Maracyn TC Tetracycline antibiotic powder is recommended for the treatment of Popeye, fin and tail rot, gill disease, and secondary infections.

Benefit: Primarily effective against gram-negative pathogenic bacterial diseases of fish. Symptoms of clamped fins, general listlessness, not eating or other unusual behavior can be caused by internal infections and treatment with Tetracycline would be indicated. All suspected bacterial infections should be treated immediately.

Use: Tetracycline is a broad-spectrum antibiotic which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. Tetracycline may turn the water red and a foam may collect on the water surface. It will not interfere with the biological filter. New activated carbon or charcoal and partial water changes after treatment will remove any remaining color resulting from treatment. It is not necessary to adjust pH, temperature, or to make water changes if readings are in the ideal range

Tetracycline Powder should be dropped into the tank (not into the filter). The powder dissolves and circulates through the water. One dosage of powder per ten gallons of freshwater is recommended. Repeat treatment every 24 hours for a total of five days. Use of a hospital tank is recommended.

For use in freshwater tanks only.