In nature, the nutrition of fish is diverse, which guarantees the right amount of trace elements, minerals and vitamins.
At the same time, it is rather difficult to ensure the necessary composition of substances in the factory feed due to the limited shelf life, therefore, manufacturers offer aquarists vitamin preparations and trace elements that are packaged separately.
Vitamins are absolutely necessary for fish, because if they are deficient, vitamin deficiency can begin, and fish become susceptible to many diseases.
Professor G. Mann determined the role of certain vitamins in the metabolism of fish, as well as the symptoms of diseases that arise when they are deficient.
- Vitamin A is essential for healthy growth and good vision. It is also very important for fertility, the mucous membrane. With a deficiency of this vitamin, bleeding from the mucous membrane and eye damage can be observed.
- Vitamin B1 is needed to supply sugar to the nerves and brain. A deficiency in fish of this vitamin leads to impaired mobility, convulsions.
- Vitamin B2 is needed to restore the mucous membrane, muscles. With a lack of vitamin B2, bleeding from the mucous membrane, as well as disorders of the nervous system, can be observed.
- Vitamin B5 restores various enzymes. With a lack of this vitamin, terminal damage is observed.
- Vitamin B6 is important for the nervous system of fish. Its lack is usually manifested in a violation of mobility.
- Vitamin B12 affects hemoglobin, and is also necessary for the digestive system. A lack of vitamin B12 leads to apathy and impaired growth.
- Vitamin C is very important for the skeleton and the body's defenses. Its deficiency leads to deformation of the terminals, increases the susceptibility of fish to diseases.
- Vitamin D3 is very important for the skeleton. With a lack of vitamin Rickets develops.
- Vitamin E affects fertile hormones and also regulates other vitamins and fatty acids. The consequences of a lack of this vitamin can be fatty liver and infertility.
- Vitamin H promotes growth. Its deficiency leads to impaired appetite, impaired growth, and to cramps.
- Vitamin K is needed to restore blood. A lack of vitamin K in the body leads to liver damage, poor healing of wounds.
- Choline is essential for the digestion of fat. With its deficiency, there may be obesity of the liver.
It is necessary to combine vitamin top dressing with preparations that do not contain any impurities (distilled water). Multivitamin preparations usually have a low concentration.
In the aquarium, vitamins are usually added to the feed. Live feed is best for this. Before feeding, the larvae are sprayed with a vitamin preparation, allowing liquid to settle on them. If the drug is mixed with a solution containing sugar or vegetable oil, then it is necessary to spray live food in a minimal amount, since midges or larvae can simply suffocate.
For vitamin top dressing, which is combined with non-living food, the same methods are usually used - this is mixing and spraying. It is not necessary to feed the fish the day before. Since the sooner they eat food sprinkled with the drug, the faster the vitamins spread throughout the body of the fish. However, when the fortified food remains in the aquarium for a long time, the vitamins will dissolve in the water. Difficulties feeding fish fortified foods may be due to the fact that stronger fish or fish that swim more quickly usually eat better pieces. The solution may be the separate keeping of fish of different groups. There are also tips in aquarium articles that you should add vitamin preparations simply to aquarium water. However, this method is inefficient and not effective enough, since the necessary substances are too diluted, and since fish cannot filter water, they do not perceive these substances in full.