Gurnard
The area. Gurnard, Trigla (Trigla) is a demersal species . inhabiting the seas of temperate and tropical zones of the World ocean. In the Black and Azov seas there are…

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Most dangerous animals in the world
Sea wasp Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can "burn" or stabbing of a person in contact with them. The range of consequences…

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Goldfish
(Carassius s. Cyprinus auratas) - belongs to the carp family (Cyprinidae) and is considered by some researchers a variation of crucian carp (Sagai vulgaris s. carassius). Since ancient times cultivated…

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goldfish

Pond fish: breeding

Thus, the spawning period is defined more clearly than most tropical species, for which the importance is not so much the temperature, the amount of rainfall.

You can determine the start time of spawning, regularly measuring the temperature of the water in the pond, because the spawning usually begins at a temperature of about 20°C. At this temperature the eggs develop normally. Plus or minus 5 °C, and the fry will be deformed, because things will develop too quickly or too slowly.

Physical changes in the fish also indicate the approach of spawning. For example, the males of the family Cyprinidae appear white swellings, called tubercles. Fish such as Orfe, Rudd, goldfish and koi, the tubercles appearing on the Gill covers and pectoral fins, while Cipriani – along the scalp.

Some fishes, such as sticklebacks, coloring of the male becomes brighter, attracting mates and scaring off rivals. Females of all cold-water species become fuller males. Continue reading

Fish for pond, fish in the garden pond

Fish not only enliven the garden pond and eat the mosquito larvae and other insects. It should be noted that their presence does not affect the purity of the pond.

When choosing a fish species should be guided by the size of the reservoir.

For example, koi need space not less than 7.5 m 2. In addition, they are harmful to the plants-oxygenators.

Requires less space Golden Orff, she’s had enough of the pond with an area of 3.5 m 2. This beige-pink fish, graceful and active. Maximum its body length 50 cm, but it rarely reaches such dimensions.

For a very small pond like a goldfish or shubunkin.

The first one has a dark Golden color. Its varieties differ elongated waving tail fin. Continue reading

Marine fish
In "Netfish" you will find a wide and exciting choice of sea fish from the entire ocean, fish, hiding in the lagoons and coral reefs, the little "angels", large angels,…

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Fish for pond, fish in the garden pond
Fish not only enliven the garden pond and eat the mosquito larvae and other insects. It should be noted that their presence does not affect the purity of the pond.…

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