Quote: “Who wants to live must fight. And who doesn’t want to resist in this world
eternal struggle, he has no right to life”.
Dear reader, this article focuses on the predators freshwater aquarium. Online wanders a lot of tall tales on the subject, to the extent that Angelfish is fierce predators of the aquarium.
Therefore, before to lay out our selection of predatory fish, let us define the concepts.
All animals can be divided into carnivores and herbivores:
CARNIVOROUS – those who feed exclusively on meat.
HERBIVORES are those who eat only plants.
Now it is worth noting the fact that in nature is very rare to find a PREDATORY ANIMAL that eats only meat. For example, cats! Cats are predators, but all the happy owners of Barsik and Murzik know that their Pets love to chew grass and house plants.
Same situation is with fish. In a huge aquarium the Kingdom very hard to find “fish masueco”. Perhaps that would not. Do not renounce, but in the diet of all aquarium fishes includes both plant and animal food.
From the above we can conclude – PREDATORY AQUARIUM FISH in the true sense of the word does not exist. Speaking of chasnosti fish most likely appropriate the word aggression. But aggression has its own trick question – after all, even guppies exhibit intraspecific aggression, although predators they by no means pull. Continue reading
The main methods of intensification of pond fish farms are feeding fish and fertilizing ponds with increased stocking density of fish per unit water area. Natural forage base of the pond with increased stocking density of fish was not enough; she can no longer provide favorable conditions for feeding and growth of fish. In order for the fish planted in the pond on the increased norm, grew well and by the autumn had reached the standard weight, it is necessary to additionally feed her fodder mixtures and to simultaneously increase the stock and utilization of natural fish food by fertilizing the ponds, application of mixed landings of fish and other ways.
Range of feed for pond fish is quite large. They can be divided into feed of plant and animal foodstuffs. As plant feeds for fishes used most often wastes of different crops (barley, rye, wheat, corn) and legumes (lupine, soybeans, lentils, peas). Grain feeds rich in carbohydrates, legumes – proteins. Apart from them, are widely used for feeding fish different kinds of food, and even housing polikarpovich oilseed meals and cakes: sunflower, hemp, safflower, rapeseed, cotton, flax, etc. Continue reading
The fauna of the Black sea is varied and unusual. Their total number is sufficiently large. Many of the species listed in the Red book. There are some that are of great importance in fisheries. Some live here permanently, or come seasonally.
All the fish in the Black sea can be divided into two categories: cartilage and bone. Mainly it is home to bony fish, cartilaginous only four species. These include manta rays, stingrays, and cat sharks spiny. Can be found as freshwater species, and marine.
The body of the fish is elongated, laterally flattened and covered with thick scales. Can be big or little size. Thermophilic fish, leading an active lifestyle from may to September. Moves to warmer places. Has a great industrial value. Continue reading