Aquatic Fauna Expansion
Java mod listed for Minecraft 1.21. File opened and checked on 6 Oct 2026; downloads from the MC Java Mods app on Android.
A NeoForge mod that revitalizes Minecraft's oceans with new creatures, behaviors, and underwater biodiversity.
⬇ Download on Modrinth
Aquatic Fauna Expansion transforms Minecraft’s oceans into thriving ecosystems filled with vibrant, dynamic marine life. Discover new species across coral reefs, kelp forests, and deep-sea trenches—each designed with natural behavior, immersive animations, and seamless integration into the vanilla world.
Hunt or be hunted, uncover rare oceanic resources, and experience underwater exploration like never before. Whether you're building a coastal base or diving into uncharted depths, the sea becomes alive, unpredictable, and genuinely exciting.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.2, 1.21.3
- 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 aquatic_fauna_addition-1.0.0-neoforge-1.21.1.jar — drop this file into the mods folder
- Download size: 419 KB
- Download link checked 11 Oct 2026 — working
These come from our own check of the pack file, not from the source page.