DIMILIN WP25 - 50 g, sufficient to treat 50 000 liters @ R 200.00
(The 1kg container on the image only for illustration, you will receive 50g in a different container)
Active ingredient: 25 g Diflubenzuron per 100 g
The recommended treatment for fish lice, anchor worm & gill maggots on koi fish, and it will not affect your filters.
I have been using this product successfully for more than 20 years on my farm for treatment of koi fish in my capacity as koi breeder and importer of Japanese koi. (Nishiki Koi Farm and Koi Online)
(Also being used to control mosquitos and flies in and around the house and to control fleas on dogs and cats)
Dosage for koi ponds: 10 g /10 000 liters with a second treatment after 10 days.
More info:
Dimilin, effective against Lernaea (anchor worm) and Fish Lice treatment and Ergasilus (gill maggots), and is less toxic towards fish than organophosphates. It will also eradicate fluke, but is not the recommended treatment for fluke.
Insects have an exoskeleton, which basically means they have their skeleton on the outside, rather than the inside as we do. There are differences in the structure of their skeleton and unlike ours, it doesn't grow with them.
To overcome this problem, insects go through growth cycles, during which they shed their old, smaller exoskeleton and make their bodies swell by taking air into the respiratory system. As their body expands it stretches the new, elastic cuticle before it sets hard.
The main component of the insect exoskeleton is a substance called chitin. Diflubenzuron (dimilin) works by interfering with the development of the new chitin exoskeleton, so the insect larvae continues to feed and develop normally until they shed their old exoskeleton. They die because the new exoskeleton is not properly formed.
Dimilin will also kill other invertebrates like water fleas, water scorpions etc.
Dimilin is also marketed as Anchor's Away and has the same active ingredient (Diflubenzuron) as Program that we use for fleas on our dogs.
Dosage rates for Koi:
Powder form: 10g / 10 000 liter (25% Diflubenzuron)
Liquid form depending on the concentration of Diflubenzuron.
A standard level teaspoon will be equal to 2g
It is fairly forgiving.
A second treatment 10 -14 days later should remove all stages of the parasite.
For further information, see Fishdoc.net
Quotes from Koi vet:
"Anchor Worm and Fish Lice.
These parasites are cleared in 3-4 days at usual seasonal temperatures (Seventies DF).
Dose: One gram per thousand liters. Mix well in water, distribute evenly around pond. Many people use a plastic gallon jug and shake it well....(Hold the cap on).
Non toxic to filter, fish or plants
Will kill crayfish, dragonflies, etc