Datapack Guides
Tide 2 dramatically reworks the fishing loot system, and it comes with a versatile system for adding fish, crates, and extra loot tables.
Note
It's recommended that you understand the basics of how datapacks work before reading this guide. Check out this minecraft wiki page for more info.
Note
This wiki is still missing info for how to add crates and extra loot tables. Check back later if you're looking for that, or reach out on the Tide discord server for help.
For additional examples, you can look at Tide's built-in fishing data files or the Tide Extra Compatibility datapack.