Broad-spectrum antibiotic controls gram-positive and some gram-negative bacteria in fish. Helps control some common fish bacterial diseases such as fin and tail rot, gill disease, septicemia, dropsy, popeye, and secondary and internal infections.
Directions: Day 1 - Add 1 capsule into aquarium for every 25 gallons of water. Day 2-5 - Add 1 capsule for every 50 gallons of water. Repeat for 5 days, if needed. NOTE: Continue treatment for 5 days even if there are no visible signs of bacteria. To remove harmless yellow color, complete a 20% water change and use a charcoal filter until water is clear.