Unfortunately, health problems in aquarium fish are not uncommon. Under certain circumstances, the aquatic inhabitants can fall ill with various fish diseases, some of which are very contagious and can sometimes even be fatal for the animals.
Which fish diseases are common in aquarium fish, how you can recognize them and what you can do against them, you will learn below.
What fish diseases are common in the aquarium?
There are numerous diseases that are widespread among aquarium fishes. Basically, all fishes can fall ill with it, although some species are more susceptible than others.
Fish diseases commonly found in aquarium fish include:
– fin rot – white spot disease – abdominal dropsy – neon disease – fungal infections – fish tuberculosis
Fins rot is a bacterial infectious disease that can occur in fish in the aquarium. Besides goldfish, among others, guppies are also affected. Discus fish quite often affected by it.
Fins rot is first noticeable with white spots on the fins. Over time, the fins then fray and become holey, until they eventually fall off completely.
Fin rot can be both acute and chronic. With a little luck, an early treatment can save the affected animals. Although fin rot, unlike many other fish diseases, is not contagious, it makes sense to move infected animals to a quarantine tank.
White spot disease
White spot disease is another fish disease that can occur repeatedly in aquariums. As their name suggests, small white dots on the body of the fish are an unmistakable sign that an infection with white spot disease is present.
The disease is caused by certain parasites. The white spots usually appear first on the fins and then gradually spread over the entire body. As the disease progresses, the white spots grow so that they eventually form interconnected gray areas on the skin.
Without timely treatment, an infection with white spot disease will sooner or later be fatal for the affected fish. Treatment is with medications, but they do not always help.
Dropsy is an infectious disease that is particularly noticeable in affected animals due to a severely distended abdomen. In addition, skin inflammations as well as ulcers belong among other things. Dark spots on the body among the possible signs of infectious abdominal dropsy. The bloating of the abdomen is caused by the decay of the organs in fish with infectious dropsy. The associated accumulation of fluid in the abdominal cavity causes.
Dropsy can certainly be treated. However, in order to save affected animals, it is necessary to recognize the fish disease at an early stage. Because if the organ damage is already too far advanced, even the administration of medication is no longer useful.
Neon disease is another fish disease caused by parasites. It especially affects neon tetras and species related to them. The neon disease is mainly noticeable by an increasing fading of the color of the fish. As the disease progresses, white spots will increasingly form on the body of affected animals.
Neon disease is very contagious. Infected fish should therefore be moved to a quarantine tank as soon as possible. Provided that treatment is started early, the chances are quite good that fish suffering from neon disease can be saved.
If the treatment is started too late, which can be recognized by a large number of white spots on the body of the fish, it can usually be amed that the animal will die as a result of the neon disease.
Fungal infections are also quite common in fish. They can be caused by different types of fungi. In particular, weakened fish are affected.
Fungi can affect the gills as well as the eyes, skin and fins of fish. The typical symptoms of a fungal infection include, above all, a cotton wool-like fuzz that forms on the affected areas.
If possible, fish suffering from a fungal infection should be separated from the other aquarium inhabitants in order to avoid additional stress for them. For the treatment of a fungal infection, various drugs can be considered. Apart from this, a targeted increase of the water temperature can counteract the growth of fungi, if this is possible for the respective fish species.
Fish tuberculosis is a fish disease caused by bacteria. Their symptoms include a bloated or sunken belly, frayed fins, inflamed or pale skin as well as scales that have fallen out and apathy.
Fish tuberculosis is not curable. Once the disease has broken out, it ends fatally for affected animals in most cases. Apart from this, the fish disease is very contagious, so that it can spread quickly in the aquarium and, in the worst case, kill the entire fish population.
To avoid this, affected fish should be removed from the tank as soon as possible and transferred to a quarantine tank. With a bit of luck, this will at least prevent the spread of fish tuberculosis to the other aquarium inhabitants.
What are the causes of fish diseases?
Fish diseases can be caused, among other things, by certain bacteria and fungi. Whether fish actually fall ill, however, depends decisively on the general condition of the animals.
This is because it is usually fish with a weakened immune system that suffer from fish diseases, while completely healthy conspecifics are rarely affected, as their bodies are better able to cope with the responsible pathogens.
If fish get sick in the aquarium, mistakes in keeping are almost always responsible for it. Above all, insufficient water quality and excessive fish stocking lead to considerable stress in fish, which sooner or later is also associated with a weakening of the immune system.
Apart from this, contamination of the water can significantly contribute to the spread of bacteria and parasites. In addition, new fish that have been introduced into the aquarium without prior quarantine can also introduce pathogens and infect the existing fish population with them.
How to avoid fish diseases?
The treatment of fish diseases is often difficult. In addition, it is not always crowned with success, so that many diseases can even end fatally. Ideally, therefore, you should ensure from the outset that your fish do not become ill.
To this end, it is particularly important that you ensure optimum husbandry conditions. A well-maintained aquarium, whose water values are regularly checked, will help you to significantly reduce the risk of fish diseases.
Also make sure that the aquarium is the right size and that there are not too many fish in it. Apart from that, it is of course important to consider the needs regarding the group size as well as the socialization with other fish species. Otherwise, turf wars. Injuries associated with this are usually not long in coming. This not only causes unnecessary stress, but also makes it easier for pathogens to enter the body of the fish.
Influence of nutrition on fish health
In addition to the points mentioned above, nutrition also plays a role in the health of your fish. Feeding a high-quality fish food according to their needs ensures that the inhabitants of your aquarium are optimally supplied with all important nutrients. In this way you support a healthy growth and a strong immune system.
Pay attention not only to the quality but also to the right amount of food. Because unconsumed food remains, which decompose in the aquarium, inevitably lead to contamination and a deterioration of the water values. This in turn ensures that the likelihood of fish diseases breaking out in your aquarium increases.
High quality fish food from Aquaris
In the Aquaris assortment you will find a selection of high-quality foods that you can use for the needs-based nutrition of your ornamental fish in the aquarium.
Aquaris ornamental fish food is characterized by carefully selected ingredients and perfectly balanced recipes. This way you can be sure that the nutritional needs of your fish are optimally met.