The fish tank can raise blackfish.

But in the fish tank to raise blackfish should pay attention to the following matters:

1, the blackfish is a more ferocious underwater carnivorous fish, submerged faster, and need a larger place to move around, so the size of the fish tank should be large. It is best to have an activity range of 10-20 meters.

2, the adult blackfish swimming speed when hunting, and have the ability to jump, so the tank should be dark to avoid the blackfish to see the tank outside the moving objects, fast swimming impact on the tank to death, followed by the surface of the water to the edge of the tank to have a height of 20-50 centimeters.

3, the blackfish is a carnivorous fish, like to eat small animals in the water, such as: wheat, wear strips, sandy crawlers, tadpoles and so on.

4, in the aquarium edge parts of planting some exposed to the surface of the water plants, blackfish like to lie down on the edge of the water plants when resting.

5, pay attention to the water change in summer and fall season every three days to change the water, spring and winter according to the room temperature, water temperature flexibility, about 5-8 degrees when gradually enter the hibernation period. In addition, the blackfish can use the mouth to breathe, short time to stop the oxygen supply, generally will be fine. But no oxygenation will not work. p>

Feeding characteristics of the blackfish

Fierce carnivorous fish, and more voracious. The predator varies with the size of the fish. Body length of 3 centimeters or less of the fry to feed on flexopods, branches and horns and mosquito larvae, etc., body length of 3 to 8 centimeters or less of the fry to aquatic insect larvae, tadpoles, shrimp, baby fish, etc., body length of 20 centimeters or more of the adult fish to a variety of small fish and frogs as a prey object (small fish mainly refers to the crucian carp, meal, trout, loach, and a variety of juvenile fish).

Blackfish swim slowly, but generally do not chase the prey, but hidden in the water near grass or other hidden things, and highly watch the surrounding movements, once found that there are fish and other live bait swim through the neighborhood will be quickly struck, a capture. The blackfish's feeding capacity is large, often swallowing about half of its body length of live bait, and the maximum capacity of its stomach can be up to 60% of its body weight.

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