just a few fish is a mod that adds fish to the rivers and seas of the game, so that if we approach the water or enter the water, we will find fish swimming freely.

These fish are not invented, but they are based on the existing fish in the game, only in Minecraft Vanilla they do not have any entity, they are only an object that appears in our inventory after fishing them. This mod creates these fish, as real entities, which will swim in the water.