? When kissing fish attack each other or fight for territory, they will kiss each other. Because they fight differently from other fish, they attack each other through serrations on their lips, so they kiss each other when they defend or fight for territory. When they kiss, they will stretch out their long lips and collide with each other. And they will not be separated for a long time, because only the loser will give up the kiss voluntarily.
So many breeders will see kissing fish kissing all the time, which can last for half a day or even a day, until one of them admits defeat, and they will stop kissing. The losing side will automatically give up its territory, and the winning side will not take the opportunity to attack them again, but return to its own territory and continue its clean-up work.
? If the feeding density in the fish tank is small, they will not compete for territory, nor will they kiss. Also, within 2 months of the birth of kissing fish, they do not have the habit of kissing, so they will not kiss. There is also a situation where kissing fish enter a new environment, they will not kiss, need to wait for them to adapt to the new environment before they will kiss because of the competition for territory.
