Gyrodactyles is a disease caused by the flatworms of Gyrodactylus. Aquarium fish are affected by several species, most often Gyrodactylus elegans, a translucent worm from 0.5 to 1 mm long. Gyrodactylus are viviparous parasites, the embryos produced by them are already quite developed larvae that can immediately firmly attach to the body of fish. For eight days, the parasite larva can live without a host, and in a sparsely populated aquarium, not having the ability to purposefully, actively move, runs the risk of death. With a high population density of the aquarium, the larvae have a greater chance of survival, which is why fish quickly become infected. Gyrodactyluses, unlike dactylogiruses, mainly affect the surface of the body and fins of fish, and the gill apparatus to a lesser extent. The diagnosis can be confirmed by examination under a microscope or under a magnifying glass of scrapings from fins, gills of the body surface of infected fish.
Symptoms of the disease
The fish makes friction against plants, soil or oscillatory movements from one side to another, while remaining in one place. Increased secretion of mucus, forming a matte coating of bluish-gray on the surface of the body. The appearance on the body of fish of flat sores or damaged inter-ray tissue on the fins indicates trauma to the hooks of the parasite. Lack of appetite and weak reaction to external stimuli. Saprolegni mushrooms that settled in damaged areas can cause saprolegniosis, which is already a secondary disease.
Timely treatment is necessary, since in its absence the fish die. First of all, it is necessary to transplant infected fish into a separate container, the water temperature in which is 27-30 ° C. Then proceed according to this scheme. First day: treatment of fish with a solution of 100 g of table salt per 10 l of standing water for 30 minutes. With their subsequent transplantation into a container with clean water. On the second day, you need to feed them with a tubular or live bloodworm. Third day: treatment with formalin solution (for 10 l of standing water - 2.5 ml) for 30 minutes. with subsequent transplantation into a container with clean water. On the fourth day, feed the fish. Fifth day: treatment with a solution of the main violet “K” (for 10 l of standing water - 0.002 g of substance), in which the fish must be kept for four days, while providing live food and sufficient aeration. Then you can return them to the aquarium. Prevention of gyrodactylyosis consists in preventing the entry of pathogens into a clean aquarium. Do not allow tight plantings, both in general and in growing aquariums.
Watch the video: Internal Parasites In Fish (October 2020).