Betta bubbles because it wants to reproduce, which is their habit. The bubbles they spit out will form bubble nests, which can be used to reproduce. If you find that Betta Fish spits bubbles, you can prepare a female fish, put it into the tank two days after it starts spitting bubbles, and then rest for a few days. After ovulation, fish out the female fish and let the male fish take care of the fertilized eggs. Wait until the fertilized eggs hatch the young fish and the young fish begin to swim horizontally before fishing out the male fish. 1、 What is the reason why Betta spits bubbles? Betta spits bubbles because it wants to reproduce. This is the habit of fighting fish. When they are in heat and want to reproduce, they will spit bubbles. Most of the bullfighting fish spit bubbles are male fish, but a small number of female fish have the habit of spitting bubbles. The bubbles they spit out will form bubble nests, which can be used to reproduce. In addition, other fish may spit bubbles because of lack of oxygen. However, the gills of Betta can directly absorb oxygen in the air. When the dissolved oxygen in the water is insufficient, they will float to the surface for breathing, so they are unlikely to spit bubbles due to lack of oxygen. 2、 How to solve the problem of fighting fish spitting bubbles 1. Breeding: This is the most recommended solution. Prepare a female fish that is about the size of a male fish and is also in estrus. About two days after the male fish begins to spit bubbles, put the female fish into the jar. Then slowly maintain them and try not to disturb them during maintenance. The mother fish will ovulate soon. After the female fish ovulates, the female fish can be fished out, but the male fish should not be fished out. It should be responsible for taking care of the fertilized eggs. Wait until the fertilized eggs hatch the young fish and the young fish begin to swim horizontally before fishing out the male fish.
2. Breaking bubbles: This is a less recommended solution. But if you don't want Betta to reproduce, you can also use this method. The specific way is to blow air into the fish tank and break the bubble nest built by fighting fish. After repeated several times, Betta won't spit bubbles again. （DouYuTuPaoPaoShiShenMeYuanYin，ZenMeJieJue）