processes

The water temperature for aquarium fish

Have you ever wondered why different fish need different temperature? And what is the impact on them of the discrepancy? And how they are sensitive to changes? Quick changes in temperature aquarium fish suffer badly, this is one reason, from which newly purchased fish die. To fish accustomed, they need to acclimatize.

Simply put, the higher the water temperature, the faster fish grow, but also age faster. We have collected some of the frequent questions about the temperature for aquarium fish and tried to answer them in an accessible form.

Fish cold-blooded?

Yes, their body temperature depends on the ambient temperature. Only a few fish, for example, some catfishes, can modify body temperature, and even sharks maintain a body temperature several degrees higher than the temperature of the water.

This means that the water temperature directly affects fish?

Water temperature affects the rate of physiological processes in the body of the fish. For example, in winter, the fish of our ponds are inactive, because the metabolism drops significantly in cold water.

At high temperatures, the water holds fewer dissolved oxygen, and fish is very important. That is why in the summer we often see how the fish rise to the surface and breathing hard.

Bystryanskaya temperature aquarium fish suffer badly, this is one reason, from which newly purchased fish die. To fish accustomed, they need to acclimatize. Continue reading

The importance of fish in human nutrition

There are some foods that are simultaneously rich in iron, phosphorus, zinc, magnesium, calcium, selenium, vitamins A, E, D, and amino acids that are necessary for the normal functioning of the cardiovascular system, thyroid gland and stomach. But in fish, all these elements abound. Therefore it is very importance of fish in human nutrition. In addition, this product small fat content (30%), it is perfectly assimilated by the human stomach digests the protein contained in fish, only 1.5-2 hours compared to 5 hours it takes to digest, say, beef.

The importance of fish in nutrition

People suffering from excess weight, just perfect river fish, which contains 2.5 grams of fat per 100 grams of weight. But suffering from diabetes can have it without any restrictions, because the number of carbohydrates it is small – only 0.1%.

Fish, competing in this regard with the chicken, is an excellent source of high quality protein which contains all necessary for normal functioning of amino acids. It also differs from meat protein by the presence of methionine.

Due to the fact that the collagen that makes up connective tissue, has the property of rapid transition in a soluble form, fish is easy to cook, and its tissues become loose, blagodaram provides maximum and rapid absorption of all nutrients. The most rich in protein fish include salmon, trout, and salmon, Beluga, easier to say that all representatives of groups of sturgeon and salmon. Great importance in human nutrition fish is also underpinned by a very high nutritional value due to high concentration of fatty acids. It refers to oily marine fish – salmon, mackerel, herring, trout, salmon and other things. Continue reading

What kind of water suitable for the aquarium?

In aquarium practice is usually to use tap or well water, which in its properties is very diverse. Water is oxide of hydrogen (H2O) and consists of two parts hydrogen and one part oxygen. In the water many dissolved substances (oxygen 21%, nitrogen 76%, carbon dioxide of 0.3%). Water in contact with soil, plants, fish, the products of decay and alkaline earth elements, acquires new qualities. The water in the aquarium must be free of any impurity metals must not contain large amounts of salts of magnesium, calcium and any other components that are harmful to aquarium inhabitants.

In rural areas often use wells, river and lake water. Before pouring water in an aquarium must be heated to a temperature of 70 C, thereby partially release water from undesirable microorganisms.

Water, potable, and suitable for the aquarium, of course, if it’s not mineral water. At home to fill in the most suitable aquarium tap water, which in most geographical areas of our country is of medium stiffness with seasonal fluctuations within 8 – 12 ‘. Excessive chlorine in it, you can delete, defending water in non-metallic container for 1 – 2 days (complete disappearance of released bubbles), active aeration (10 -12 hours),filtration through activated carbon, adding to it the hyposulphite (thiosulphate) sodium (1 g/10 l) or by boiling for 10 minutes. The last method, the water loses oxygen and must be aerated.

The use of pond water is not recommended, and the water is rain and snow the city is not suitable for the aquarium, as it contains large amounts of harmful solid, liquid and gaseous state. In rural areas, the use of such water is possible, but it needs to be filtered from dust and other substances. Continue reading

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