Sorry to bother you but could you port this to 1.19.3 please? Thanks!

There is currently a bug in Forge, which prevents us from being able to add new loot to the fishing loot table, hence why there is not a release yet.
If you want to play around with an early build, you can grab one here: https://jenkins.girafi.dk/job/Team%20Metallurgy%20Mods/job/Aquaculture/job/Aquaculture%202%201.19/

Is it not working for 1.19.3?

It's not working for 1.19.3