Aquatic Fauna Expansion

A NeoForge mod that revitalizes Minecraft's oceans with new creatures, behaviors, and underwater biodiversity.

1.1K Downloads

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About this Mod

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.

Available Versions

Aquatic Fauna Expansion 1.0.0beta

MC 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10neoforge

November 20, 2025

How to Install Aquatic Fauna Expansion on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.10).

Install Mod

Open the mod browser in the dashboard and search for "Aquatic Fauna Expansion". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+7 more)

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Aquatic Fauna Expansion server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.

Is Aquatic Fauna Expansion compatible with neoforge?

Aquatic Fauna Expansion officially supports neoforge for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Aquatic Fauna Expansion – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Aquatic Fauna Expansion consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.