Spotted fork-tailed catfish breeding stage of the pool water dissolved oxygen should be maintained at 4 mg / l or more, 3 mg / l or less will greatly affect the growth, but also affects the appetite and reduce the immune resistance of the fish, so in the fish pond should be equipped with oxygenation facilities, and to do the right time to open the oxygen.

The high temperature season should be often filled with new water, generally 1 ~ 2 weeks to fill the water once, to maintain good water quality. Water quality is too fat, found that the odor, water quality should be replaced in a timely manner, you can first row into or row into the side, the amount of water can only be a maximum of 20 cm or so, can be gradually adjusted many times the quality of the water, do not row large irrigation caused by rapid changes in the quality of the water caused by the breeding object to produce stress, triggering the occurrence of disease.

In the feeding process should master the amount of feeding, to avoid overfeeding, overfeeding is not only a waste of feed, but also affect the water quality.

Pond moss and other harmful algae and other enemies should be removed in a timely manner to kill, keep the pond water clean, no weeds, debris at the edge of the pond. Appearance of water plants in the pond can mu put 10 to 15 20 cm size of grass carp, in order to control the growth of water plants.

Spotted fork-tailed catfish in the breeding process rarely occurs disease, if the parent fish is not with disease, fry fitness, water quality and other environmental conditions, feed nutrition is comprehensive, feeding science, the production operation is cautious, careful and brisk, to avoid damage to the fish body, is generally not sick.

When the fish appear to have a decline in intake, poor eating ability, sluggish action, red spots on the body surface, herpes and other abnormalities, it should be promptly examined for diagnosis and symptomatic treatment.

Water requirements

While any water source can be used for spotted fork-tailed catfish broodstock after treatment, certain water sources are more expensive to treat and are not applicable, so a good water source needs to be selected. Commonly used water sources are groundwater and surface water.

Generally speaking, groundwater is the best water source for spotted fork-tailed catfish breeding and hatching, because groundwater is usually no suspended solids, uncontaminated, there is no pathogenic bacteria, water temperature and water chemistry is relatively stable. Of course, groundwater also exists in low dissolved oxygen, may contain high concentrations of carbon dioxide and hydrogen sulfide, low water temperature and other shortcomings, but in the use of aeration, oxygenation, heating, sedimentation, filtration and other means to make the groundwater in line with the requirements of breeding water.

Surface water includes streams, rivers, ponds, lakes and reservoirs. Unpolluted surface water is superior to groundwater as a water source, but currently uncontaminated water sources are hard to find, especially when using surface water is prone to bring in pathogenic bacteria.

Water temperature requirements

Egg incubation and fry cultivation of the appropriate temperature of 26 ~ 28 ℃, if the water temperature is too low egg incubation period will be prolonged, and low-temperature fungi will be a large number of reproduction, affecting the normal development of the egg; if the water temperature is too high, the rate of deformity of the fish fry will rise, and the water temperature is more than 28 ℃, the spotted fork-tailed catfish eggs and fish fry are very susceptible to bacterial diseases and viral diseases. Therefore, the selection of hatching water temperature is best controlled at about 27 ℃.

Dissolved oxygen requirements

Hatchery water dissolved oxygen should be maintained at more than 4 mg / liter, in addition to the water source into the hatchery before the full aeration, the hatchery should also be set up in the inflatable facilities, constantly inflatable, and the hatchery water to maintain the cycle.