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Gyrodactylus


Gyrodactylus

Latin name: Gyrodactylus
Other names:
Pathogen: parasite

Symptoms: Sucking parasite Gyrodactylus with elongated body (0.2 – 0.8 mm) and has at its posterior portion a sucker with two central large hooks, surrounded by sixteen smaller hooks for attaching to a host, Clamped fins, Fish do swinging movements, Fish hang near the surface, Fish itch (fish scratch on the rocks and other objects), Fish stop feeding, Blue-grayish slime coating, Opacification of the cornea (keratoleukoma, nebula), Separate slightly red areas on the body, Separation of fin rays, Tail fin is down, Ulcers

Initially, affected fish will float at the surface, swimming will become intermittent, the caudal fin is lowered, the other fins are clamped. They will rub against the gravel, stalks, and leaves, develop dull blue or grey patches over parts of the body, tissues between fin rays begin to erode. Sick fish stop feeding, show ulcers, focal reddening, bluish-white coat on the gills, eyes appear cloudy. Microscopic examination of scrapings of the skin slime will show the parasites.

Description:
It is caused by the sucking parasite Gyrodactylus. The parasite is about 0.2-0.8 mm long and has at its posterior portion a sucker which has two central large hooks, surrounded by some sixteen smaller hooks for attaching itself to its host. It affects the skin, gills and fins causing their damage. It is bought into the aquarium with feed taken from ponds and not quarantined for 10 days. It affects primarily cyprinoids (gold fish, barbs). The larvae of the parasite attaches itself to fish and develops into an adult worms. In the process of its development the larva causes tissue damage, weakening fish and eventually causes its death. These parasites actively reproduce in water with a high organic content. Large numbers of parasites can be seen on the skin when the fish does not move.

How to cure:
Affected fish should be given Basic Violet K baths at a dose of 0.1 g per 1L of water. Then 10-15 ml of this solution is dissolved in 10L of aquarium water.

Medicine:
Синь метиленовая
Cульфат меди
Малахитовый зеленый
Sera Mycopur
Sera cyprinopur (for ponds)
General Cure (Aquarium Pharmaceuticals)

Prevention:
Take live feed from natural fishless ponds.

Fish susceptible to the disease/disorder: