just a few fish is a mod that aims to improve various aspects related to fish and fishing. As you know, currently in Minecraft there are four types of fish, but they are not found in rivers or seas, they can just be fished and that’s it, that is, they don’t really exist. This mod gives the fish an entity, i.e. they have modeling, they have animations, and ultimately, they exist.
We can find the predefined fish in Minecraft swimming in the open waters of our worlds. These fish can be caught and will have animation. But not only that, we can also create water tanks or aquariums where we can put fish. These fish can reproduce like any other animal, for this you need to take seeds and throw them into the water tank or aquarium.