Marine aquarium fish
In this article we will discuss the most popular marine aquarium fish. They can be divided into several families. Angelfish are a large family of aquarium fish (Royal, Imperial, blue-crested,…

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In the waters of the Tiber are two-meter predatory fish
As you know, climate change and mutation of animals has ceased to be a rarity and few people are surprised. Familiar to the inhabitants of Rome and became such a…

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Aquarium fish — fish that are bred in aquariums, usually, decorative purposes.
The majority of aquarium fish in natural conditions are inhabitants of tropical and subtropical freshwater reservoirs, for the life of them requires a relatively high temperature of water, approximately corresponding…

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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

The biggest fish
Humanity is always interesting to know who in the world "firsts". Interest to the largest river predator will never run out. Amazing catfish Catfish is a fish, covered in a…

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The biggest perch in the world
The Nile perch (LatesNiloticus), from the order Perciformes, also known as the largest bass, is very valuable in quality. Features of the structure Several prelucrata head, the jaw protrudes forward,…

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