Freshwater and Marine Aquarium – which one to choose?
All aquariums, depending on the biological filling divided into two types – freshwater and marine.
Freshwater aquarium designed to hold fish, other animals and plants that live in fresh water. It is possible to settle the discus, barbs, dwarf gourami, zebrafish, neon, angelfish and many other fish that are found naturally in rivers and lakes.
In the marine aquarium, filled with salt water, will feel perfectly corals, fish such as zebrasoma, groupers, psevdohromisy, Anthias, stone and sand perch, mullet, as well as other inhabitants of the seas and oceans.
According to the external features of the model fresh and saltwater aquariums do not differ from each other: they have the same shape, are used for their production identical materials. The difference lies in the technique used for the sustenance of the inhabitants of the aqua systems and maintenance of aquariums.
To ensure optimum habitat marine inhabitants is difficult. To do this, you must keep under control the chemical composition of the water, use a certain type of soil, marine aquatic systems equipped with powerful filtering and aeration.
In terms of complexity include freshwater aquarium considerably easier. Continue reading
Interesting facts about the sea creatures crawling and flying
In salt water seas and oceans inhabited by hundreds of species of animals. Living creatures found even near the hot thermal springs and submarine at the bottom of the deepest ocean trenches. Below are some interesting facts about marine life, mysterious and amazing facts of life is not similar to each other Aboriginal oceans.
Interesting facts about the different kinds of marine life
• Trees on land must be hundreds of years to grow to several tens of meters. Some species living in seawater kelp grow up to 200 meters per year. Their growth rate – 60 centimeters per day. But there are also tiny, free-floating in the water almost all the oceans unicellular algae such as diatoms. Even 1kub.sm Antarctic ice can be up to 30 thousand
• Some semblance ancestors flatworms, known to all parasites – is living in the sea vetvistokishechnye worms. Marine flatworms are predators and very interesting the way they hunt. Roth vetvistokishechnyh worms located on the belly, and is equipped with a gut-wrenching throat. When sliding on the surface of the submerged rocks, sea worm finds, for example, sitting on it barnacles (small crustaceans), it just pulls it Continue reading
Hazardous inhabitants of the Black Sea
And yet, some sea creatures to be feared near the coast of the Crimea? Represent a threat to several species of fish and jellyfish.
Jellyfish Aurelia has the form of a flat umbrella with a diameter of 10 – 20 cm. Around the edges of which are numerous threadlike tentacles. Rhizostoma – larger jellyfish dome with a diameter of up to 40 – 50 cm. Which departs from 8 large processes. Jellyfish tentacles are equipped with so-called stinging cells; by touching that person receives a burn on both nettles, traces of which are stored in the body for several hours.
The most painful sensations occur when the burn mucous takaney. In the coastal waters of the Crimea is most common is Rhizostoma. Especially many of these jellyfish observed in August.
Marine ruff – a brownish-brown fish, preferring mostly rocky bottom and rocks. Medium size – 10-20 cm. Eleven rays anterior dorsal, one ventral and anal fins have three poisonous glands that produce the toxin. The fish lives on the bottom. At a depth of several meters. In the crevices of rocks. Himself anyone not attacking, but it is very convenient target for marine rifle. Slow-moving, the ear of a Succulent.
Be careful to spearfishing. Do not touch the fins and prickly thorns, located on the back of the fish.
Prick them brings, though short-lived, but quite painful. Poison may have a fever.
The most toxic venom of sea perch in the early spring. Continue reading