Fish Fix
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
What is Fish Fix?
This is a mod for NeoForge 1.21.1. It addresses this bug in particular: https://bugs.mojang.com/browse/MC/issues/MC-226687. It simply fixes the consequences of the hardcoded "getSeaLevel" method by allowing the user to set their own sea level. This bug was fixed in 1.21.2.
This mod is primarily useful for datapack and modpack creators, or anyone who modifies world generation with the ocean in mind. By default, the mod uses the game's hardcoded values; they must be changed in the config for any practical effect.
I do plan on backporting this mod.
To be clear: this mod does not allow you to modify sea level. This must be done separately.
Contact Me
Dejeh on Discord
Please report any bugs on the issue tracker: https://github.com/Dejeh/Fish-Fix-1.21.1/issues
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as fishfix-1.21.1-1.0.0.jar — drop this file into the mods folder
- Download size: 7 KB
- Download link checked 11 Oct 2026 — working
These come from our own check of the pack file, not from the source page.