This Fabric Mod adds a Parrot Fish to the Game that can eat dead Corals (or dead Coral Fans) either directly in the world or when feed to by a Player. After a shot time they produce Sand depending on the type of Coral it ate:

Horn:   100% Sand
Tube:   75% Sand & 25% Red Sand
Brain:  50% Sand & 50% Red Sand
Bubble: 25% Sand & 75% Red Sand
Fire:   100% Red Sand

They only spawn in Warm Oceans, can be picked up with a bucket and also cooked and eaten.

Parrot Fish are animals that exist in the Real World and eat Coral to make Sand, so I thought this would be a better alternative to make Sand renewable instead of making it drop by Husks like most people suggest. Also its more interresting to automate it this way.

Also im a horrible Artist, so please excuse the textures.