Fenbendazole Powder is a highly effective worming agent for freshwater and saltwater tropical species. Using pure veterinary grade powder will offer the most success. Don’t be fooled by some who claim their products are without filler, yet when you weight the packets it is clear fillers are used.
Due to issues with successful treatment of Levamisole caused by a resistance build up, Fenbendazole is becoming the better choice.
Can be dosed via water column or mixed with foods.
Treatment: Dosed via water column at 1 teaspoon per 20 gallons (100 mg per gallon). Repeat in 48 hours. And again in 3 weeks if treating camallanus worms or other resistant parasites. After second dose, do a large water change (>75%) to clear out any residual medication.
NOTE: When treating via water column Fenbendazole is known to not be readily absorbed by certain types of fish, so treatment may not be as effective as dosing in food.
NOTE: Occasionally discus are known to start head standing when having a bad reaction to treating the water column. If fish display any behavioral changes do an immediate water change.
In food, mix in a ratio of 0.25% – 0.5% per pound of food. Offer as the only food source for 3-5 days. And repeat in 3 weeks when treating resistant parasites. At the higher dose can feed 1-2 times per week for a couple of weeks. Closely monitor fish to ensure they are not having a bad reaction to the higher food dosage.
10 gram will treat approximately 100 gallons or 25 pounds of food
Pure Fenbendazole Powder can be found at Everything Aquatic