? Kissing fish are fighting. Many people think they are kissing when they see kissing fish kissing together, but the real reason is not to convey love, but to fight for territory. When they kiss each other, they compare the patience of both sides, because they have serrations on their mouths, and they will always kiss each other, and one of them must give up first. They may not be separated for an afternoon or a day until one of them admits defeat. But they are gentle and will not pursue each other after their failure, but continue to clean up their work.
? Kissing fish don't kiss other fish, because as mentioned above, kissing fish kiss to fight for territory, because they have serrations on their lips and attack each other when they kiss. But other fish don't have serrations on their mouths, and they don't have the habit of kissing, so they don't kiss kissing fish. Kissing fish are gentle but territorial, so they attack other fish when they are mixed with other small fish, and they eat fish smaller than themselves. But they move slowly, and breeders can choose to mix them with small, agile tropical fish.
