The main difficulty in building a saltwater aquarium is the fact that most ocean animals used to exist in an environment with almost constant characteristics and the changes of the freshwater will be a kind of shock for fish. Marine fish cannot tolerate temperature changes, cannot live in stagnant, oxygen-poor water and require a well-defined chemical composition of the habitat. So, life-sustaining marine aquarium is a very complex construction. First of all, a necessary part of the aquarium is living stones. They may be rocks that were once part of an ocean reef. The best live rocks are the ones that were overgrown with marine worms, seaweed, and sponges and populated with many small marine creatures. Living stones with partially dead inmates require medical treatment - a long soak in the sea flowing water. If live rock is not available, can be used instead ground stones, provided that they are nontoxic. However, in this case, a viable reef is much more difficult, because the rocks are found in marine bacteria and microscopic animals, which are an integral part of the complex natural biological filtration. Another important component is the sand. Fans of artificial jewelry (caves, skulls, sunken ships, painted coral skeletons, etc.) need to remember that salt water destroys the material is much more active than fresh, so the risk of poisoning of food fracture in this case is very large. Especially dangerous metals: a coin can kill all its inhabitants. If you want to keep living corals, need to think about lighting. Put the corals in the aquarium, which has no special reef lighting is like to put plants in a dark closet, as many corals, like plants, use photosynthesis. Since almost all marine fish are harmful fluctuations in temperature, the tank must be efficient heater thermostat. Special pumps (pump), mixing water placed in the aquarium to ensure the ocean currents. It usually takes from two to four compact pumps, placed in opposite ends of the false tank. They create the necessary corals and marine fish for which carries water between the rocks and sand (natural filters), bears to coral nutrients and helps the fish to navigate. In addition, the aquarium uses a lot of other devices, such as mechanical filters, ozone generator, sterilizer with ultraviolet lamps, columns that support the required level of calcium, etc. However, if you follow the rules of selection of residents, which will be discussed below, the number of vehicles in the reservoir, can be substantially reduced.
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