If the female fish has dystocia, it will often get stuck in the middle of giving birth to a small fish, and there will be signs of struggle and pain, and it will stagger when swimming. Some fish will hide in the shade and usually stay still, while others will breathe quickly and eat their feed hesitantly. In this case, it is best to use toothpicks to get the small fish out, so that there is a chance to live, otherwise, the big fish and small fish will die.
1. Avoid the male fish: The female fish will generally avoid the male fish after pregnancy. If the male fish has been chasing the female fish, it may lead to dystocia. This situation mainly occurs in some ovoviviparous fish that are fertilized in vivo. Generally, after the fish have completed mating, it is necessary to fish out the males in time. Raise the female fish alone.
2. Water quality change: If the water quality of the female fish fluctuates during the breeding period, it will also cause dystocia. Therefore, it is necessary to avoid frequent water change, and do not change too much water each time. In addition, do not casually throw anything into the fish tank, which will also cause changes in water quality, as long as attention to maintain water quality, can reduce the risk of dystocia.
3. Too large temperature difference: For fish, too large temperature change is unfavorable for their survival, and pregnant female fish may also have dystocia. Generally, attention should be paid to heat preservation, especially at night. It is best to control the water temperature with a heating rod.