Dec 6, 2020 · Koi fish lice treatment guide and how to get rid of fish lice in ponds & lakes. What are fish lice, where do they come from, and best argulus treatments.

Jul 22, 2015 · Fish lice have eyes and are able to follow koi by sight during the day. At night, they hunt using their sense of smell or detecting a koi’s movement by displaced water.

Jun 18, 2023 · One effective way to treat koi lice is by giving your fish a salt bath. Dissolve one pound of non-iodized salt per 100 gallons of water in a separate container before adding it to your pond.

Jul 1, 2023 · Treating lice on Koi requires prompt action and regular monitoring. Salt baths, potassium permanganate treatments, and formalin treatments are effective methods that can help eliminate lice infestations.

Nov 24, 2024 · Some common koi parasites include flukes, lice, anchor worm, and ich. Once you have identified the parasite that is affecting your koi fish, you should quarantine the infected fish immediately. This will prevent the parasite from spreading to other healthy fish in the pond.

Feb 26, 2021 · Koi fish lice is a crustacean, or “branchiurian” parasite most commonly found in koi ponds, but it is occasionally found in an aquarium. In an aquarium, the eggs are found in tubular structures on the glass and ornaments.

Mar 18, 2025 · The best times for parasite prevention are in spring and fall — seasons when koi are more vulnerable due to temperature changes and weakened immune systems. By …

Argulus is a type of fish lice found in koi, typically introduced into ponds by visiting toads or frogs. Find out how to identify it and the best treatments.

Fish lice on koi are quite mobile; you can actually see them move along the fish’s skin. They can even swim from one fish to another if they so choose. A fish lice parasite can actually live for several weeks without attaching to a host fish! Adults may grow to ½ inch in size.

Koi fish can be affected by several external parasites, including flukes, lice, and anchor worms. Flukes are flat, leaf-shaped parasites that attach to the skin and gills, while lice are small, crab-like creatures that can cause irritation.