Out of stock
Out of stock
Out of stock
Out of stock

For Aquarium Fish Infection / Parasite

  • Shipping:  

Volume: *

Learn More

99.6% purity water-soluble Oxytetracycline HCl, in the form of a fine yellow crystalline substance

Release Type: 100 grams of powder in a plastic bottle.

Oxytetracycline HCl is an effective internal (mixed with food) and external (water) broad-spectrum antibiotic treatment for gram-positive and some gram-negative bacterial infections. Oxytetracycline HCl is commonly used to treat body slime and cloudy eyesmarine ulcer disease, mouth fungus, cold water disease, bacterial hemorrhagic septicemia, fin and tail rot, bacterial gill disease, dropsy or kidney bloat, open sores and loss of scales, and other ailments. Most bacterial infections in fish are caused or exacerbated by improper aquarium hygiene, so proper cleansing of the tank is necessary when infections occur.  

Treatment:   1/4 teaspoon (do not confuse with tablespoon measure!) per 20 gallons water.  Repeat treatment every 48 hours (or 24 hours for severe infections) for 10 days (or until the problems are completely resolved/symptoms disappear) with a 25%-50% water change before the initial and each subsequent treatment.  

Discontinue if improvement isn't noticed after 5 days of treatment.


In the dry, dark, well ventilated (humidity of 75%) room on the shelf with the temperature from 18  to 25 °C.
 Do not store together with food

Expiration date – 4 years from the release date.  (04 /2022 )