Sharks (lat. Selachimorpha) is a superorder of cartilaginous fish comprising eight teams, twenty families and about 350 species. Members of the superorder widely distributed in all seas and oceans, there are also freshwater sharks. Most species belong to the so-called real predators, some species, particularly whale, and giant deep-sea sharks, eat plankton.
For many millions of years before the planet appeared the first man, ruler of the prehistoric seas was a shark. The power of evolution sowed on Earth, countless forms of life that could not stand the severe tests and disappeared one after another, as the shark continued to exist. One prehistoric era is succeeded by another, have any amphibians, reptiles, birds, and mammals – the shark continued to exist. Pterodactyls – the winged reptile for millions of years plied the skies, disappeared from the face of the Earth. Dinosaurs-Triceratops, Brontosaurus, allosaurus and many other “saurus”, it is important chestvovali on our planet died out, leaving no trace. As the shark continued to exist.
About 20 million years ago in the sea scoured a huge Stingray, weighing over 100 pounds, and more than 25 different species of sharks, including sharks, reaching 36 meters in length. The length of these monstrous sharks was Opredelenie their huge teeth. Some of the teeth found in California, weighing 340 grams each and reach 15 centimeters in length, and seven – and ten teeth are quite common. They are triangular in shape and closer to the teeth of modern great white sharks that do not exceed 5-6 inches now with a body length of shark of 12 meters (maximum length). These teeth belonged to the ancestor of the modern great white shark the carcharodon, in huge quantities inhabited the seas. When they were first found in the seventeenth-century scientists, naturalists believed that this fossil bird tongues or teeth of serpents. They could not imagine that this shark’s teeth, and ascribed them to the mythical animal. Continue reading
People living in big cities, accustomed to the fact that each day is filled with stress and fuss. Frantic pace of life in the concrete jungle every day more and more alienate us from nature. If you want to bring into your life a piece of natural tranquility and peace of the living world — place the aquarium in the interior of your home or office. Motley paints the inhabitants of this amazing water world will make the gray urban everyday life more fun, improving your emotional state.
Marine aquarium the new time — this is not a regular element of Aqua . Experts say high-quality design of the aquarium contributes to the improvement of emotional state, getting rid of depression, mood elevation. The water of the aquarium moistens the air, making the atmosphere more healthy.
If you start from the ancient Chinese teachings of Feng Shui, moving water has a powerful energy to influence a person’s life — it gives abundance, material and spiritual prosperity. Well-designed marine aquarium . filled with clear water and populated fun healthy fish, no doubt, affects the welfare of his master, pulling good fortune, bringing a positive mood. Unique aquarium design interior in accordance with all your requirements, be able to highlight your individuality. Exclusive design,embodying the most daring desires, will make a good impression on family, friends or work colleagues. Do not waste the chance given to you the unique technical capabilities of our century — place it in your home or office a element of Aqua design, representing a little island of nature in a busy world cold city walls. Beautiful and unusual saltwater aquarium in the interior, which is a fairytale world with many mysteries that will allow you to take a fresh look at life. Continue reading
The first thing we need to think about is the size of your aquarium. Much easier to maintain in good condition a large volume of sea water than small. The minimum size of marine aquarium should be 100 x 50 x 50 cm the larger the aquarium you can afford, the better.
Technically, the organization of the aquarium with sea or brackish water is absolutely the same as freshwater. The main difference is only that in water you need to add salt. Since this water is in increasingly corrosive than freshwater, aquarium eliminated any metal objects. The destruction of the metal in the water can lead to poisoning of fish.
All items used for preparation of water and irrigation of the soil (buckets, colanders, spoons etc.), should be plastic. If you have an external thermostat, stick them to the glass and do not hang on the wall of the aquarium with the help of metal hooks with which they are sold. The same applies to the combined instrument heater-thermostat Even fixing of luminescent lamps to the cover must be non-metallic.
For most of us to use clean seawater is not possible, because either we live too far from the sea, or the seawater is heavily polluted. Manufacturers produce salt for sostoyatelnoy sea water with the right balance of minerals that the fish need. You just have to mix the salt with tap water in accordance with instructions to obtain the required specific gravity of the final solution. Continue reading