feeding

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Our unique Black sea

Our city Odessa is located on the best sea in the world. There are living animals that can’t cause great harm, it’s just not natural cataclysms.

Lovingly the black sea washes the shores of Russia, Ukraine, Romania, Bulgaria, Turkey and Georgia. It is connected with other seas through the Bosphorus and Dardanelles and the sea of Azov – Kerch Strait.

Our sea is not too big (in the world), but that is not the last place. With a total area of 422 000 km from North to South the sea stretches for 580 km and from East to West 1150 km, the biggest depth – 2210 m, the average – 1240 m.

The length of the coast around the Black sea – 3400 km Into the sea fall into 3 major rivers: the Danube, Dniester, Dnieper.

Known than the Black sea?

First, one of its exclusive feature is the total absence of life at depths greater than 150-200 m (although there are a few anaerobic bacteria), due to the fact that at this depth the water is saturated with hydrogen sulphide. Continue reading

Viviparous fish

Viviparous fish are among the most popular aquarium fish species. Earned its popularity because of the ease of breeding in aquariums, even without any special conditions. Main popular representatives of the species: guppies, swordtails, and platys mollienesia. Due to the ease of breeding, viviparous fish have been widely disseminated among breeders. They are called viviparous, because they don’t spawn and immediately throw the fry, they develop the female in the abdomen after fertilization by the male of the female. Other viviparous fish kept in aquariums more often. They are less popular because of the modest color or bad habits — excessive aggressiveness or jednosti.

Sex differences viviparous:

Anal fin of females have fan-shaped. Anal fin of the male has the appearance of a twig (gonopodium) and can rotate in all directions.

Mosquitofish. A male and female.

Conditions viviparous fish:

Almost all types of viviparous fish will be suitable tank volume 100 litres, planted with aquatic plants. Some viviparus, for example mollienesia, doing a good job with small growths of algae on the plants, thereby helping us in cleaning and maintaining an aquarium. But there are those types of viviparous fish that don’t mind to eat some plants, especially tender leaves. Continue reading

How to breed fish in ponds

Pond fish farming is the breeding of commercial fish in specially adapted or constructed for this purpose reservoirs. Farms can be full (full system) or incomplete (napolnitelem). In full system retailing the fish grow from egg stage to marketable, and in breeding — pedigree producers for full-cycle hatcheries and commercial farms.

Not in full-cycle farms planting material is grown marketable fish. They are of two types. The widest form of fish farming is feeding the carp fish farm . Spring here are imported from hatcheries to fingerling of carp weighing up to 30 grams, put them in the fattening ponds,in the fall catch of marketable fish with an average weight of from 500 to 800 grams. To grow fish in feeding the economy easy and accessible to everyone farming.

Fish farming in ponds

Carp is a widespread inhabitant of warm-water ponds. For several hundred years, farmers brought from the wild carp are some of the cultural breeds of carp that have fast growth rate and high fecundity. Widely known scaly, mirror, naked and ramcity carp, but most are bred the first two. Continue reading

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