Cloud fish

Cloud Fish are small, white, hostile fish with green eyes that live in the clouds. They are one of the main mobs that attack you on the final boss. They flick their tail at you and are one of the Claw's minions. They are small and have only 1 hp point. They are very easy to kill and only take 0.5 damage on you. If they mutate with a Creeper, they will shoot TNT out of their fins, making them dangerous. When killed, they make an ear-piercing noise that alerts the Claw to kill you.

Spawning
Cloud fish ONLY spawn in the cloud dimension, near the portal as a spawner and in the Cloud Dimension.

On rare occasions, they will spawn mutated with a Creeper. This will happen only if you use a Mutation potion on them.

Drops
Cloud fish only drop experience, but on a rare occasion they will drop the Fluffinator, a really rare item useful for many things.

Behavior
They flap their tail on you and will call Claw if killed. If mutated with a creeper they will shoot TNT out of their fins.

Trivia

 * They are similar to Silverfish.
 * They are minions of Claw.
 * They can fly, but cannot swim, which is unlikely for a fish.