1, whether the water quality is not suitable: the traffic light fish on the water quality requirements are still relatively high, weak acidic soft water in order to make it adapt to the pH value of 5.0 ~ 7.0. water change should be a small amount of water change, should not be frequent large amounts of water change, otherwise it is easy to cause the fish do not adapt. Change the water once every 7 days, roughly 30% of the water, when changing the water, pay attention to the temperature difference should not be more than 2 degrees. The water quality should be stable and the water temperature should not fluctuate too much.

2, breeding density is not too large: it is recommended that 1 liter of water to raise 1 cm of fish, this condition, do not need to increase oxygen. If your breeding density is very large, even if the oxygen increase, it is easy to cause dead fish phenomenon.

3, whether there is an infectious fish disease: the traffic light fish like to live in the water with high nutrient content, the water in the tank for a long time without changing, the fish feces will be fermented, causing changes in the concentration of water PH value, the water is too high in nitrite content, it will cause the traffic light fish to die of illness. So usually pay attention to observe the fish's body surface and gills, whether there are foreign objects. Whether the fins are intact or not, and whether the fish eats normally or not.

4, whether the external environment is too noisy: traffic light fish do not like too strong light place, usually like quiet, all usually in the feeding time, can not be placed in the fish tank next to the TV series, computers and other noisy places.

5, mixed fish is not appropriate: the traffic light fish is small, timid and gentle nature, it is easy to be attacked by other large fish caused by death, so in the choice of other fish mixed, can not choose so aggressive fish, such as the map fish, tiger fish, dinosaur fish, fish, and so on, it is best to choose some of the mild class of fish can be, such as: the kissing fish, the mouse fish, Moonlight fish and so on.

6, the water temperature can meet the requirements: the traffic light fish on the temperature requirements are also high, the appropriate temperature at about 25 degrees, below 20 degrees, they will stop eating and die.

Expanded information:

Chinese red lamprey like to move around in the shaded area with lots of water plants. You can keep some water plants, put some sunken wood and so on can be. Water plants are capable of purifying water quality, and keeping some shrimps can also help eat the dirt formed by fish poop and reduce the probability of traffic light fish getting sick. In addition, it is best to keep the filter on 24 hours a day, without a filter, it is more difficult to raise traffic light fish successfully.

The traffic light is sensitive to water quality, the optimal temperature for keeping in the north is 24℃, and weak acidic water. But new fish into the tank, to exchange at least 1/5 of the new water to reduce the mortality rate, when adapted to the tank to maintain the old water and high oxygen environment, a simple summary is: new fish new water, old fish old water.

It should be noted that, before the new fish enter the tank and every time you change the water, it is best to add some antiseptic drugs, such as: Gentazyme or cephalosporin can be, but in moderation.

The reproduction of the red green lamprey is more difficult, mainly in the breeding water quality requirement is higher and the care requirement of the young fish is more special. Breeding water needs to use very soft distilled water, and then use sodium dihydrogen phosphate to adjust the pH of the water to 5.6 to 6.5, and then inflate with a larger air pump for 2 to 3 days, which will be filled into a large mouth glass envy bottles standby.

A layer of nylon mesh plate is laid on the bottom of the large-mouth glass bottle, and a little hairline grass is laid on the mesh plate, and a pair of parent fish is put into each bottle. To increase production, 50 to 100 glass bottles are usually needed in the hatchery. In addition, the incubation water for the young is extremely soft and the water temperature is completely different from that of daily rearing. When the young reach 5 mm in length, they should be moved to a large tank for rearing, taking care to allow the roe to have the process of acclimatizing to the water quality.

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