Separation of aquarium fish in accordance with their nutritional needs
Fish digest the food they receive more fully than warm-blooded animals. For example, carnivorous fish digest up to 55% of proteins, whereas mammals. about 25%. Such efficiency contributes to the structure of the intestine, which causes the food preferences of fish.
Intelligibility in the feed is not a whim, but a feature due to the structure of the gastrointestinal tract (GIT). Herbivorous virtually no stomach. Such a gastrointestinal tract have Malawian cichlids (Mbun group), algae. Some species of herbivorous fish should be given vegetables that are better prepared in a special way, which is described in the article "Vegetables in the diet of aquarium fish." Carnivores, for example, some character-like, fighting Betta Fish, large catfish have a stomach and need the predominance of food proteins with the obligatory presence of components of plant food. It is necessary even for pure predators. these species of fish in nature receive plant food, not collecting it, but receiving through the victim, in the stomach of which there is vegetable food. The third group of aquarium fish is omnivorous, which need both animal protein and high-quality plant food.
There are also species of aquarium fish that have peculiar food preferences, such as, for example, mbuna, cichlid Genyochromis mento, preferring to feed on scales and fins of fish.
Depending on the habitual nature of the food, the proportion of fat, protein and carbohydrates ratio must be observed in it. Below is a table indicating this ratio depending on the type of feed.
The natural frequency of food intake is also different. the red-tailed catfish take as much food as possible and, hiding in a shelter, digest it for several days. Mollies spend all day in search of food, capturing it in small portions, plucking algae. The frequency of eating changes with age
The location of food in the water column also matters. Some species of fish consume food at the bottom, such as most wines and catfish. Others, for example, viviparous and killing teeth, prefer to take food on the surface. Still others, like barbs, tetras, rasbaras, are looking for food in the water column. The preference of the fish is indicated by the location of the oral apparatus:
– jaws pointing up. on the surface;
– jaws low or downward. on the ground;
– jaws directed forward. in the middle layers.
These are far from all the parameters that the food of aquarium fish must satisfy so that they:
– normally prepared for spawning and throwing full-fledged caviar and milt;
– fry normally rose and reached adulthood;
– coloring was shown in full;
– had a powerful immune system and resisted contagious diseases;
– the water in the aquarium was crystal clear.
All these requirements, which correspond to natural food, are taken into account when creating recipes for artificial dry food by leading manufacturers of feed for aquarium and pond fish. A practically complete range of such feeds is presented in aquaMegaMall.ru. The site also provides information on the characteristics of such feeds, for whom they are intended, to obtain all the necessary information.
Today, formulations have been developed for the preparation of artificial feed, the cultivation of live feed for almost all types of aquarium fish. All these formulations, methods of growing, disinfecting are given in the following articles.
An example is the weekly diet for non-predatory cichlids and omnivorous fish, which are used by many aquarists who professionally are engaged in breeding aquarium fish.