This is a mod that adds a new fish to minecraft called the koi.
It is simply a fish that spawns in water and swims around in there. When you kill it you will get a fish. If you want to get this fish in your house you can simply craft a spawner egg with an egg and a fish.
Installation:
- Download and install Minecraft Forge.
- Download Mod zip file
- Put Mod zip file into your /.minecraft/mods folder. Do not unzip it.
- Done.