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Fish and other animals in the pond

Fish enliven the garden pond: for their graceful movements interesting to watch. The role of fish in maintaining the balance of oxygen and carbon dioxide in the water is usually exaggerated, while the benefits they offer by eating mosquito larvae, it is difficult to overestimate. However, the presence of fish in the pond is desirable, but not necessary, since usually little impact on maintaining the purity of water.

When choosing fish, primarily guided by the size of your pond. If you are not strapped for cash, you might want to purchase expensive and beautiful koi. Unfortunately, these fish need special conditions – the surface area of the pond not less than 7.5 square metres and a depth of at least 1.2 m. At the other end of the scale are hardy and unassuming goldfish and shubunkin who are able to live with any, even very tiny pond – it is necessary only to ensure that in winter the surface water is not delayed by ice for a long time. Between koi and goldfish is Golden Orff, which required a pond with a surface area of at least 4 sq. m.

Another important consideration is visibility. Motley shubunkin and black telescopes spectacular aquarium, but in a pond they are lost. Better to populate the pond with bright white, yellow, orange and red fish. The most suitable for this is the movable gold zolotarivka and Orpah, because they always stick at the water surface. Continue reading

Diseases of aquarium fish

Aquarium fish, like other living creatures, susceptible to various diseases. If you want the inhabitants of Your aquarium pleasing to the eye, will not only have time to change the water and feed the fish, but to follow some other rules and also to monitor the health of beneficiaries. In this article we will discuss the main diseases of aquarium fish, symptoms, methods of treatment and prevention.

For any disease, it is important to identify it. Pay attention to the inhabitants of Your aquarium. Sick fish swims slowly or if the pendulum dangling in the water. Try to hit your finger on the glass, any healthy fish will sharply depart from the source of the noise. If the fish in response to knock is behaving sluggishly — this is a worrying sign. The presence of the disease is the fact that for a long time, the fish hangs at the water surface, not moving its fins, or Vice versa cannot rise from the bottom. Consider the most common diseases of aquarium fish.

The cause of hydrocephalus, as a rule, are unfavorable conditions: poor temperature, lack of aeration, the water is dirty. The fish who had dropsy, exophthalmia, and appears General weakness, the body swells, the scales are raised, the skin swells and becomes whitish.

Dropsy can be cured only at an early stage, so it’s very important scoreability the disease. Treatment involves a bath of 80 mg of Chloromycetin per 10 liters of water in which fish is placed for up to 30 minutes. Continue reading

Fish of the Black sea, the black sea shark Katran

Mackerel is a common and very important fish for the fishery. It is small, silver with a dark back and a barbed bone nail file along the sideline. Mackerel overwinter in the deep, going in large schools, spawn all summer. To the shore suitable only at the end of October, because they prefer cool water.

Mullet – the most unpretentious of our commercial fish. Spawns in the coastal zone to a depth of 75 meters, however, can proliferate in the open sea. Withstands water temperatures from 0.5 to 38°C, salinity to 80 g per liter, but lives in polyprenol water. Tolerate the lack of oxygen in the open sea swims, even in the deeper layers with “rotten water” and hydrogen sulfide bacteria. Mullet indifferent to polluted water and often winters in the ports under jetty. Its meat, unfortunately, begins to smell of fuel oil.

Fish-bed boppers – master to change the colour and even the patterns of his skin, repeating pattern and color of the soil. Floating over a familiar bottom, flounder disguises itself in just a few seconds. To select a color for the new background, take a lot more time, however, expanding and compressing the special pigment cells on their side, it can adapt even to the chessboard. Continue reading

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Marine biology
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