Directory of aquarium fish and invertebrates
In the aquarium in most cases, contains several species of fish. So when selecting them you need to pay special attention to match the requirements of the conditions of keeping and feeding. According to data available at the present time there are about 300 species of aquarium fish, but more than half of them are rare. When krasnovidova the content of the fish is very difficult to create optimal conditions for each species. I mean the lighting, temperature, vegetation, and oxygen feed mode, the thickness of the layer of water, its cruelty and acidity. However, many fish species are characterized by their ability to adapt to environment conditions.
Many aspiring Amateur aquarists strive to keep in the aquarium more vibrant and beautiful fish, oblivious to the fact that you can not find them only in appearance. Survival, development and reproduction of fishes is a complex process. While much will need to be taken into account. For the settlement of the aquarium it is better to take young fish. They are best acclimatized to these or other conditions. When it is difficult to determine the sex, it is better to choose a few big fish and young the same for equal ratios of both sexes. You need to keep in mind that the aquarium can only contain fish of the same volume, the disposition and habits. You cannot put together the large with the small, predatory — with a peaceful, cold-water with warm-water. For starters you should not buy and even more to settle in a community tank these fish that need some special conditions.
When selecting fish it is necessary to look for damage their body, there are no stains, the color characteristic of this species, what is the condition of the skin, gills, fins and eyes. Usually healthy fish are mobile, their belly is not sunken, the scales are not damaged, smooth and not protruding, the scales are no fluffy deposits, fins transparent, dorsal fin raised high, the color is bright. Sick fish, conversely, are inactive, swim in an unnatural position, the dorsal fin is adpressed, often float on the water surface and trap air.
When choosing fish it is also important to have an idea about what the conditions were for them before, because the fish, if kept at a high temperature or excessive water enrichment by oxygen, usually pampered, in the new conditions, they may die or get sick. If we talk about the number of fish in the aquarium, it is difficult to say anything definite, but can still recommend the planting of fish in windproof tank size 40-50 liters in such quantity that each fish length up to 5 cm accounted for at least 2 liters of water, 8-10 cm long, 3-4 l more than 12 cm — 8-10 L.
For the fish, which must be kept very warm water (25-28°), the rate of water must be increased in twice. As labyrinth fish, then this norm can be reduced in 2-3 times. In aquariums, if they are blowing off and water filtration, you can keep the fish 2-3 times more, depending on their age and type of aquarium. In low aquariums can contain fish of more than high as the enrichment of water with air, takes place largely on the water surface. The best effect still gives the settlement in a fish aquarium of any one or more types according to the similarity of living conditions and relationship. Widely known for all fish categorized on the basis of species characteristics, lifestyle and method of reproduction.