Type of feed fish are divided into four groups:
– benthos feeders — fish, feeding on small organisms living on the bottom or near the bottom (benthos), sturgeon, grayling, bream, ruff, etc
– planktology — fish feeding on organisms living suspended in the water column (plankton), Zope, sabrefish, bleak, verhovka, etc.
– mixed feeding — fish feeding on organisms such as benthos and plankton, — roach, bream, IDE, Dace, etc.;
predators — fish that feed on other fishes or animals of their own species — pike, pikeperch, perch, Chub, burbot, catfish, trout, salmon of the Danube. Continue reading
Intellectual work has long required special attention to non-pecuniary costs for its implementation. To put it simply, in order to calm your nerves after a long stay at the computer or in a consultative room, you need to follow some special procedures. It can be sports exercises, breathing exercises, relaxing with friends or other similar activities. But there is one exercise that will allow you to have a good mood and not to go somewhere on the side in his quest. And all you need is an aquarium and marine fish for the aquarium, which will become its inhabitants.
Now let’s talk more about the advantages of this method of calming the nerves. The fact that water flowing in its original form is a calm breed. Already one look at its stable state is able to balance even the most aggressive person. Here lies the secret to peaceful setting areas, in which there are large aquariums. Quiet swimming of their inhabitants and carefree movement absorb all aggression, regardless of whether they come from visitors or from the host. Continue reading
Aquarium fish — ornamental fish . which are contained in the aquariums . Aquarium fish originate from China . The Chinese began to breed aquarium fish since 2000 BC.
For the most part, aquarium fish characterized by bright decorative painting, fancy body shape and small size. The most popular type of aquarium fish are considered to be the gold fish .
To popular aquarium fish include: goldfish . zebrafish . ancistrus . barbs . angelfish . catfish . neon . nannostomus . the Labe . discus . guppies, etc.
Fish – cold-water animals, i.e. their body temperature is close to ambient temperature and does not exceed it by more than 0.5-1 degree (tuna can, the difference can be up to 10 degrees). Therefore, the speed of metabolic processes in fish depends on water temperature. Fish, like any vertebrate animal that has a skeleton, musculature, skin, respiratory system, excretion, reproduction and senses, digestive, circulatory and nervous system.
Movement. Continue reading