Test for ammonia at this time to determine if this might be worsening the situation. Make sure that the temperature is not too high, as this results in less oxygen in the water too. Since it is hard to control your fish, you need to conform the tank to them. Place plenty of rock work, plants or hollow decor in the tank, depending on the behavior of your fish. Q. I have a livebearer that keeps getting pregnant.
Cannibalism varies in intensity from one species to the next.
Some livebearers are so predatory that a special delivery tank is needed. A 10 gallon tank will suffice. You can try one of the following suggestions. Or, buy a well known brand of automatic feeder that you can set yourself to the proper amount of food. Weekend feeder shells might not work properly if your pH is way off or temperature is not right.