Breeding and maintenance of marine sharks in aquariums - Akva Agro - fish farm RAS
The images show sea aquarium (dimensions 1,6*0,8*0,8 m), there are three "blacktip" sharks (Harharinus melanopterus ). This shark is viviparous and is constantly in motion, specimens grow to 80 cm…

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The use of marine fish - the ABCs of health
Many people know that fish is a useful product for the body, especially for men, but few can guess about the valuable properties of sea fish. Most people do not…

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Pond fish. Wintering
Lately becoming more and more popular ponds in suburban areas. And what's a pond without fish? It can be ordinary gray carp, but often contain a variety of Koi colors.…

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Aquarium and pond fish. Goldfish in a large assortment in stock

For keeping goldfish it is better to have a tank capacity of at least 50 litres per individual. With the increase in the volume of the tank density should increase slightly, but much should not get carried away, with these fish is very easy to cross the line. In particular, in a volume of 100 l you can put two goldfish (or three, but in this case you will need to make a strong filtration and increase water changes). 150 l can be planted 3-4 individuals, in 200 l – 5-6, 250 l – 6 to 8, etc. Say that we are talking about grown fish size 5-7 cm, excluding the length of the caudal fin..

Goldfish like to dig in the soil. As the soil is better to use coarse sand or pebbles, which are not so easily scattered fish. The aquarium itself must be spacious and species, with large plants. However, tender plants quickly deteriorate goldfish or the surface of their leaves in water contaminated with suspended particles of trash. Therefore, in an aquarium with goldfish it is recommended to plant plants with stiff leaves and a good root system, such as Vallisneria, potbelly, Sagittaria, or the most enduring, such as Elodea.

In the common aquarium goldfish can be kept together with other calm fishes. Try to ensure that in akvariumistike lighting and filtration. For all varieties of goldfish require good aeration. Gorodomlya goldfish (veiltail, telescope) require a larger volume of water than the long-bodied (the common goldfish, comet, shubunkin), for the same length of the body.

The characteristics of water, gold fish are undemanding, for example, the temperature can vary from 18 to 30 °C. Optimum should be considered in the spring and summer of 18 – 23 °C, winter – 15 – 18 °C. water Hardness 8 – 25°, pH 6-8. If you feel unwell fish in the water you can add salt 5-7 g/l. Fish tolerate a salinity of 12-15%. It is advisable to regularly replace part of the water volume.

Goldfish are omnivorous and in relation to food unpretentious. They eat quite a lot and willingly. Their diet should include fresh, vegetarian food. Goldfish require less protein than tropical aquarium fish and more carbohydrates. So many companies produce for goldfish and their exotic varieties of special diet in the form of flakes and granules. When using them, can achieve good results, because in addition to the essential nutrients with a great deal of carbohydrates, these foods are balanced and contain natural additives that improve the yellow, orange and red colors. It must be remembered, that when feeding dry food of any sort should be given in small portions several times a day, as in contact in a moist environment in the esophagus of the fish, he, swelled, greatly increased in size and can cause constipation and disruption of the normal functioning of the digestive organs of fish, which may result in the death of fish. You can first hold dry food for some time (10 seconds – flakes, 20-30 seconds – granules) in the water and only then to give them fish.

Although goldfish and hungry, give them plenty of feed should not be. The daily amount of food given should not exceed 3% of the weight of the fish. Feed adult fish twice a day – early morning and evening. Food gives as much as they can eat in ten to twenty minutes, and the remnants of uneaten food should be removed. Remember that underfeeding is better to fish than to overfeed them. Adult fish are receiving proper nutrition, no harm can carry a week’s hunger strike.

Detachment Perciformes (perciformes)
Pomacentridae family (pomacentridae) This family includes about 10 genera. This is a small, no longer than 15-20 cm, marine fish that have a thick-headed, flattened laterally body. The eyes of…

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The inhabitants of the Black sea: jellyfish, dolphins, stingrays, sharks, crabs, fish. page 11 - Rest in Anapa
Fair to say that on the black sea coast is far less dangerous creatures than in many other places. Due to the low salinity and the poverty of the animal…

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