Fish mobs uses PLAYER death sounds.
Using a Custom sound pack to confirm that ¨Fish¨ mobs uses this JSON line:
"game.player.die": {
"category": "player",
"sounds": [
"sounds/damage/hit1",
{
"name": "sounds/damage/hit2",
"load_on_low_memory": true
},
"sounds/damage/hit3"
Which is supposed to be like this:
¨mob.fish.death¨: {
¨category¨: ¨neutral¨
¨sounds¨: [
¨sounds/mob/fish/death¨,
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