JellyFishy

JellyFishy

Introduces a brand new mob for the ocean (Jellyfish) just like in real life this mob groups up (10-20 in a group) and basically just moves freely also dont touch em!

by
5 Downloads
neoforgeadventuremobsworldgen
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Screenshots

About this Mod

Jellyfish - Mob Description

Free Roaming Ocean Mob

Will give you stinged effect if you touch it

Stays in groups up to 20 even higher sometimes

Its about 0.2 mph


Available Versions

JellyFishy 1.0.0release
MC 1.21, 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, 1.21.10, 1.21.11neoforge
July 6, 2026

How to Install JellyFishy on Your Server

1

Order Server

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

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

~ Optional

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

JellyFishy 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 (1.21.11). You can switch loaders with one click in the panel.

Is JellyFishy compatible with neoforge?

JellyFishy officially supports neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with JellyFishy – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if JellyFishy 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.

Rent Modded Server

Install JellyFishy with just one click on your server.

Recommended RAM
6 GBfrom €12/mo
Minimum 4 GB | per 5 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Optional

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+2 more