The variety of aquarium fish
What sizes, shapes and colors do not exist in nature among the inhabitants of the underwater world! To date there are over two thousand known species of fish, and how…

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Types of aquarium fish
The aquarium in the sense of the population should be a little "underutilized". Learn how many centimeters to grow those fish, which you have chosen for contents, and make a…

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Predatory and peaceful fish

Carnivorous (lat. Carnivora — “flesh-eating”) is a detachment of the placental mammals ( Mammalia ), consisting of sub-units dog-like family ( Caniformia ) and maskoobraznym ( Feliformia ). 11 modern families of prey contain about 270 species in 110 genera and are distributed almost worldwide. The vast majority of the squad are classic carnivores, hunting mainly vertebrates. Predatory sometimes is also divided into two groups that are very different from each other in their mode of life: terrestrial Carnivora ( Fissipedia ) and pinnipeds ( Pinnipedia )

Carnivora scientific name in Latin means “flesh-eating” and consists of two roots — caro (born. p. carnis ) ‘meat’ and vorare “devour, swallow”.

Many predatory eat not only meat. Bear ( Ursidae ) are opportunistic omnivores. some species such as the giant Panda and does specialize in plant nutrition. The small pandas, badgers, olingo, kinkajou, raccoons-Poloskov and raccoon dogs vegetarian food also makes up a significant, if not the main part of their menu. Continue reading

The food chain, Sea

“Natural systems” – Global. The continents and oceans. Zonal natural complexes. Savannah. The natural areas. Climate. Taiga. Major. The lower part of the atmosphere. Flora. The Arctic desert. “Component”-in translation from Latin means “a constituent part of a whole”. J. Lamarck. Mixed and wide kristenye forest. The whole biosphere.

“Diversity of organisms” – Plants. HOMEWORK: PREPARE FOR WRITTEN TEST EXAMINATION OF THE ENTRIES IN THE NOTEBOOK. 2. Aquatic environment (fish, shellfish, seaweed, whales, jellyfish, etc.). Viruses. 4. Land-air-water (waterfowl, dragonflies, mosquitoes, etc.). 3. Terrestrial-aquatic (amphibians, crocodiles, marine turtles, etc.).

“Habitat” organisms – Each organism adapted to life in a particular environment. Environment – the conditions surrounding the organism. Distinguish between land– air, water and soil environment. Adaptations of plants. Well developed organs: root, stem, leaves, etc. Adaptations for pollination: bright color of flowers, the fragrance of Fixtures to maintain moisture. Continue reading

Catfish: aquarium species

Almost all members of the family of catfish unpretentious, so they are recommended even for beginner aquarists. But still some features to care for them.

In a group of catfish includes more than 200 species of fish, but in the aquarium you can hold not all members of this family. This is due to the physiological characteristics of individual species.

Some catfish in adulthood reach an impressive size, so they begin to pose a danger to small inhabitants of the aquarium. In addition, there are breeds which differ quite aggressive in nature, so they too are not suitable for keeping with other fish.

Popular species of catfish

Of course, you can only breed catfish, but the majority of aquarists prefer to choose peaceful members of this large family that they get along with other Pets.

The most popular species suitable for aquarium rearing are: Continue reading

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