WARNING: If you are looking for the complete original BetterNether mod this is NOT it! Although it doesn't cause a conflict, you shouldn't install both mods at the same time.
BetterNether is a great mod, but one of its best features is its two ambient mobs: the firefly and the hydrogen jellyfish.
Those two mobs and their spawn eggs are the only thing the mod features, so you can continue playing in your world without the rest of the BetterNether stuff if you don't want it there.
Both mobs spawn in any biome in the Nether, including biomes from other mods.
Mob icons are included if you use Xaero's Minimap.
Works in Forge with Sinytra Connector!
- All rights to the original creators of BetterNether: quiqueck and paulevs.
- All rights to the firefly icon from the RP: Hellim's Xaero's Maps Mob Icons
⚠️ Warning: Official Download Sources
Beware! My content is only distributed for download from Modrinth and CurseForge.
Any other site doing so is NOT me!
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20, 1.20.1
- 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 — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Ships as BetterNether-AmbientMobs-1.1.0-1.20.1.jar — drop this file into the mods folder
- Download size: 688 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.