? Kissing fish kiss when they fight. When they fight, they put their mouths tightly together and look like kissing. But in fact, there are many tiny serrations on their mouths. When they are fighting for territory, they will stretch out their long lips at the same time and collide with each other for a long time. Although they look like humans kissing, they are actually attacking each other with the serrations on their mouths. In addition to attacking, they kiss each other with patience, so one of them must give up before they end the kiss. Otherwise, they may not be separated for half a day or a day.
is normal, because as mentioned above, kissing fish kiss to fight for territory or fight, so they don't kiss when they don't fight at ordinary times. It is also possible that the density of breeding is low, they have enough space, they will not fight, and naturally they will not kiss. It is also possible that newborn fish do not have the habit of kissing, and when they grow up to about 2 months, they begin to have the habit of kissing. It is also possible that they have just changed to a new environment and are not adapted to it. They need to adapt to the environment before they can divide their territory. Finally, the breeding environment is poor, and they are physically weak, so they will not kiss.
