Starfish is a wonderful marine animals that have a variety of color, shape and volume, although they are all similar in appearance to a star. Some of them smooth, some with spines all over his body and smooth cock from the back side. If you look at the star from below, become visible its tubular legs. Learn more about these interesting animals!
I. Starfish- not a fish
Sea stars live underwater, but they are not fish. They lack the Gill and fins, and they move differently. Fish move with the help of the tail, and the stars help little feet-tubes, helping them to navigate the bottom.
II. Sea stars are echinoderms marine animals mind
This means that they have something in common with sea urchins. All echinoderms have the shape of a star, i.e., its body is divided into 5 rays, located around the center.
III. There are thousands of varieties of sea stars
Know about 2000 species of sea stars. They live in tidal areas or at great depths in the tropics or colder regions. Continue reading
The birthplace of Elodea canadensis, as its name suggests, North America . Is one of the most popular in the world of aquatic plants. In the last century, the Elodea has been introduced and acclimatized in many countries of Europe. In Russia it is widely distributed in European Russia and Western Siberia in stagnant and slowly flowing waters. Plant, because of its ability to grow very quickly and create a dense cluster, hindering navigation and fishing, also known as “the plague water” or “water infection”.
Long, threadlike stems of Elodea is covered in long, transparent sheets, bright green color up to 1 cm in length and 0.5 cm in width. The plant stems can grow up to 3 m long and form a powerful thickets. Grows floating freely in the water column throughout the year.
Elodeja canadian very undemanding plant . Just feels better in moderately warm and cold-water aquariums. Tropical aquarium plant long to grow. The recommended water temperature 16 – 24 °C. tolerates a long period of temperature decrease to 12 °C. Stiffness and active reaction of water to Elodea do not matter, it grows well and is very soft and in hard water. But it is necessary to consider the characteristics of water when you move plants from one tank to another. Continue reading