1. The water temperature is too low: The black Mary fish is a typical tropical fish and does not like cold water. Because they live in cold water, their resistance will decline and they will easily get sick. If the water temperature is lower than 18 C for a long time, they are prone to water mildew, white spot disease and other diseases. If they are not treated and covered in time after morbidity, they may die.
2. Poor water quality: They prefer clean, weakly alkaline water. If the water is too dirty or too acidic, they will not survive. In addition, we should pay attention to the water quality of aquaculture water will gradually deteriorate with their growth, and need to be replaced regularly. If the water is not changed for a long time, the water quality is too poor, and they may die.
3. Environmental mutation: Black Mary fish like a stable environment. If the water temperature or water quality of the breeding water suddenly changes greatly, they are likely to die because they cannot adapt to it. This happens when the water is changed. If the amount of water is too large, the water temperature or water quality changes greatly before and after the water change, it may lead to their death.
If you want to raise the black Mary fish well and not let them die, you should pay attention to maintaining the water temperature and quality, and feed them regularly. The water temperature should be controlled between 22-28 degrees Celsius. The water should be weakly alkaline and clean. Do not change more than a quarter of the water each time. And feed them once a day. The feed should be clean. Before feeding live bait, it should be disinfected in advance to avoid infecting fish with pathogens or parasites.
