No.

Kissing fish do not require an additional supply of oxygen. The reason is that due to their small size, their oxygen requirements and consumption are relatively low. As long as the stocking density is appropriate, there is no need to provide oxygen. Kissing fish have auxiliary respiratory organs similar to those of the betta family. If there is lack of oxygen in the fish tank, they will swim to the surface of the water to breathe, and then return to the bottom of the tank to continue cleaning algae and moss. Therefore, under normal feeding conditions, kissing fish do not require additional oxygen supply.