Flubendazole is mainly used against skin. and gillworms.used. It works at least as a feed additive but also against milling head worms. Flubendazole is found in the prescription drug Flubenol 5%.
Flubenol dissolves very poorly in water. Before use, the required amount of Flubenol should therefore be shaken vigorously in a sealed container.
Flubenol is often dissolved in dimethyl sulfoxide (DMSO) and used together with it due to its poor water solubility. However, DMSO is poorly tolerated by many fish.
Alternatively, Flubenol is dissolved in alcohol before use.
In the meantime, Flubenol no longer seems to reliably kill many types of skin and gill worms.
According to several reports, flubenol or flubendazole can kill snails and shrimp.
Area of application Symptoms
Field of application diseases
dosages
- 100 – 200 milligrams of pure active ingredient per 100 liters of water over 2 days. This dosage comes from the book Atlas of Fish Diseases by Dr. Gerald Bassleer, 1st edition. The dosage may be too high. See the two comments below. In the link given there, 0.2g/100l Flubenol 5% or 10mg/100l Flubendazole (pure active ingredient) are recommended. This corresponds to the other dosage suggestions here.
- 200 milligrams of Flubenol 5% per 100 liters of water (= 0.05 to 0.1 milligrams of pure active ingredient per liter of water) for 5 to 8 days
- For milling head worms, 200 mg Flubenol in 100 liters of water, change the water after 6 – 8 days and repeat the treatment
- When dissolved in DMSO, 200 milligrams of flubenol are dissolved in 5 to 10 ml of DMSO.
- As a feed additive to combat milling headworms, mix a pinch of Flubenol 5% with the feed in a small container without water and feed after a few minutes.
After the treatment, one or more large water changes are performed. In the case of gill worms, the treatment must be repeated after about a week.
Disadvantages
- Flubenol dissolves poorly in water.
- Some worm species are no longer reliably killed.
- Snails and shrimp can be killed.
Miscellaneous
Using with acetone or ethyl alcohol to dissolve can cause water cloudiness and oxygen starvation. Flubendazole can cause a strong odor in organically contaminated aquariums. During the treatment, the water must be well aerated.