16-04-2014, 16:52
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Argulus foliaceus



Argulus foliaceus is an invasive disease. It is caused by the blood-sucking carp-eating crayfish (Argulus foliaceus) which, once on the body of its victim, causes an inflammation characterized by redness, swelling and heavy mucus discharge. Fish swim swaying from side to side and constantly rubbing against the ground or underwater rocks.

In total, in the nature of the known 3 genera carp-eaters - these are primarily Argulus foliaceus, which includes about 50 species, Dolops from South America, consisting of 10 species, as well as Chonopeltis consisting of 1 species living in Asia and Africa. The crayfish has an oval-shaped body and is about 4-6 mm in size. The entire body is protected by a peculiar shield, which viewed through 4 pairs of bifurcated legs. Eyes are located on the back. Immediately around the eyes is the head with a pair of suction cups, with which the crustacean sucks his prey, piercing her skin and release in the body of fish poisonous substance, and then begin to suck blood from her. In addition to gradually taking away the strength of healthy fish, the crayfish's actions also provoke other fungal, viral and bacterial diseases.

It should be noted that the carp-eater does not sit all the time on the body of its victim, it sucks on it only when hungry, and then leaves it and attaches to various objects in the aquarium, where it rests.

The carp-eater reproduces as follows. After the female is fertilized, she lays thread-shaped eggs on plant leaves and rocks. The parasites hatch after 20 days and immediately rush out to find their prey. It should be noted that small or weakened fish may die immediately from the first injection of the carp-eater, while other, larger fish species will gradually lose their strength and if no action on their treatment can die.

Usually, the carp-eater is brought into the aquarium with plants or soil taken from the local pond, as well as with food, such as trubopod. In this regard, all plants before placing them in the aquarium should be disinfected, and the soil must first be boiled.

For treatment, all fish in the infected tank should be caught and transplanted to a small quarantine tank. Next, find the fish with the parasite on the body, catch it and put it on damp absorbent cotton, and then gently tweezers to extract the sucking carp-eater. After these manipulations it is necessary to treat the wound with manganese or tripaflavine.

You can treat the fish without catching them, for which in the quarantine tank dissolve copper sulfate in the proportion of 15 mg per 10 liters of water.

In order to thoroughly kill all carp-eaters and their larvae in the aquarium, it is necessary to disinfect all plants and boil all decorations and ground. If this is not done, the disease can flare up with renewed vigor when you put healthy fish into the aquarium.

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