Diseases of aquarium fishes and their treatment
Here we describe the most common diseases found in aquarium fish, and also about methods of their prevention and treatment. Fish diseases are divided into infectious and is not caused by fungal pathogens (infectious diseases) and not caused by any pathogen (non-contagious).
The main features of the most common diseases that help determine what disease a sick fish, as well as useful tips on prevention and treatment can be found in the section Useful tips on treatment and prevention .
Common diseases caused by chemical or physical factor:
Poisoning by chlorine. After prolonged exposure to chlorinated water on the body of the fish appear islets of mucus, gills are lighter in color and also covered with mucus. The fish has difficulty in breathing, may attempt to jump out of the water. Her death may come very soon, if time does not remove it from water disinfected with chlorine. Novice aquarists it is important to take note that when you change the water in the aquarium each time you need to check your tap water for the presence of chlorine impurities. Better to defend the water for several days, until complete volatilization of chlorine. If fish accidentally received a dose of chlorine, then immediately remove it from akvariumov clean water, there’s a chance for her recovery.
Anoxia or lack of oxygen. The lack of oxygen in your aquarium can lead to suffocation and death of fish. If fish are restless, and often rise to the surface of the water and greedily grab the air mouth, then the oxygen content in water below the permissible limits. To avoid this, regularly check and service the filter and aerator, check the circulation of oxygen in the water. If the aquarium is not installed aeration equipment, install it. Remember – for a long period of oxygen starvation of the fish and their breathing atmospheric air can lead to impaired function of gills, and as a consequence death.
Thermal shock. Is associated with a sharp increase or decrease of water temperature in the aquarium. As a rule, experienced aquarium owners such phenomenon is not observed almost. Beginners are advised to carefully check the water temperature when replacing, and periodically monitor the thermostat and a thermometer in the aquarium. The temperature must be average and not have sudden changes. At high temperature of the water decreases the amount of oxygen, and fish exhibit excessive activity is increasingly located at the water surface ( in the upper water layer more air). Excess movement can occur in exhaustion, falling to the bottom and death from hypoxia. If the temperature is below normal, fish Vice versa are sluggish behavior, often lie on the ground or stand in one place. Low water temperature may lead to colds and even fish to their doom.
Disease alkaline (alkalosis). Its occurrence in fish is associated with a high value of alkalinity in the aquarium. Alkalosis is manifested by the following features: the fish is observed shortness of breath, often swollen abdomen, pale coloration of the body, rastaplivaete fins, there is increased secretion of mucus from the gills. Fish in the alkali disease exhibit increased activity, trying to jump out of the aquarium. In acute disease alkalosis may lead to the death of fish. It should be noted that this disease affects in the aquarium not all of its inhabitants, it hurt, first of all, fish, hard carrying sharp change water pH and negatively tolerate high acidity and alkalinity. To alkaline disease your fish has never been – check regularly for indicators of water tests and replaces as needed the water. If you alkalosis could not be avoided, it is possible to cure it you can use pH buffer, which is sold in the pet store.
Obesity. If you fish for a long time to overfeed, give them a monotonous food they can become obese. This seemingly harmless disease can cause a number of acute problems linked with the health of your Pets. Primarily affects the kidneys and liver, then other organs that fish may even become infertile. What’s is obesity in fish? The answer is simple: observe the fish, if it is observed apathy, lethargy, sides are much rounder, she became less move is a sign of obesity. To prevent excess weight it is recommended to feed the fish small amounts several times a day, at about the same time, including in the diet of fish high quality food, alternating between them. It is desirable sometimes to give the fish live food and periodically arrange fasting days. It is possible to reduce the number of feedings to 2-3 to 1 a day, and preferably 1-2 times a month not to feed the fish.
Gas embolism. Because of the excess aeration in the aquarium the fish may develop gas embolism. When excessive excess oxygen in the blood vessels of fish blockage, resulting disrupted the normal circulation. At a constant excess oxygen may lead to the death of fish. To determine what is in your tank more oxygen than the fish and plants can on the following grounds: on the walls of the aquarium and the plants there are a group of accumulated air bubbles on the fish there are small air bubbles. If gas embolism is affected internal organs of fish, they can swim on one side, to behave inappropriately, the movements of the Gill covers can be broken. If you notice this, you should pay attention to the circulation of oxygen in the aquarium. Firstly, reduce the output of the compressor or of the filter, and secondly pay attention to the plants, they may be excessively expanded and produce a large amount of oxygen, others with clean soil, accumulated food residues and waste products can emit gas, which is also a cause of embolism, and finally regularly replaces the water in the aquarium (it is advisable to add pooled). While respecting all these simple rules the risk of gas embolism in your tank is minimized.