Diseases of aquarium fish - a very common phenomenon. Water inhabitants are most often killed due to improper care.
Less common can be hereditary diseases, which in most cases are incurable.
Black aquarium fish not only because of infections, but also because of poor water quality.
Colds in fish
It may sound strange, but aquarium fishAlso are prone to colds. This happens, as a rule, because the water temperature is too low. The first signs of a cold are folded fins and black spots on the gills.
The only method of treatment in this caseIs to ensure the desired temperature, which should be at least 23oC. Please do not abruptly change the water. The temperature should be increased only gradually.
In some cases, the fish turn black due to a genetic predisposition. If the behavior does not change, the appetite does not disappear, and the fish is active and mobile, then there is no cause for concern.
Branchiomycosis in fish
Branchiomycosis is a very dangerous disease forAquarium fish. A water inhabitant can perish for only a few days. The main symptoms of this infection are black stripes in the body and in the head region. The fish becomes very slow and swims upwards with the tail. Externally, it seems that her body reshuffles her head.
A sickly fish must be transplanted fromTheir neighbors. Branhiomycosis is a contagious disease that can destroy all aquarium inhabitants in a short time. The optimal method of treatment is a solution of copper sulfate, which is added to the water with minimal dosages.
If fish regularly overeat, then the consequence of this can be their blackening. The main sign of perekorma is considered sluggish behavior of aquatic inhabitants and swollen tummies.
The most common reason for the appearance of blackSpots on aquarium fish is a disease that is called fin rot. The darkening of the body begins with the fins and tail.
There are a lot of causes of fin rot. The most common of these are inadequate conditions of detention, too much fish in the aquarium, a rare cleaning of the aquarium, severe water pollution.
For the prevention of fin rot should be regularMonitor the condition of the aquarium. The remains of the feed should never be stored on the bottom. Otherwise, the water will become uninhabitable and will have a destructive effect on the fish.
Other causes of blackening of fish
In rare cases, the cause of the blackening of the fishes can be the larva of the cuticle. Infection is possible only if, for example, you planted a representative of the river habitat to aquarium fish.
Note that some fishBlack spots appear gradually, but this is not a disease. A vivid example is the sword bearer. Young fish have a lighter color. Gradually the body turns black and there are multi-colored dots.