Fluorium
Fluorium is a client-side performance optimization mod for Minecraft 1.21.5 built on Fabric. Its main goal is to improve game performance without altering gameplay. Fluorium uses **Entity Culling** to skip rendering entities that are not visible to the pl
About this Mod
Fluorium is a client-side performance optimization mod for Minecraft 1.21.5 built on Fabric.
Its main goal is to improve game performance without altering gameplay. Fluorium uses Entity Culling to skip rendering entities that are not visible to the player, effectively reducing GPU load and improving frame rates in crowded areas such as mob farms, villages, or multiplayer servers.
Additionally, it includes internal optimizations to lower CPU usage and reduce memory pressure, making the game feel smoother even on lower-end systems.
🛠 Features:
- Entity Culling (invisible entities are skipped for rendering)
- Reduced CPU usage
- Optimized memory allocation
- Zero gameplay changes
- Fully client-side (safe to use on any server)
- Compatible with most Fabric mods
🔧 Requirements:
- Minecraft 1.21.5
- Fabric Loader
Fluorium is ideal for players who want better performance without sacrificing compatibility or features. Whether you're using a modpack or just playing vanilla, Fluorium will help your game run more smoothly.
🧠 Source Code:
https://github.com/CassaBlanca00/fluorine
(LOST THE ACCESS TO THE GITHUB ACCOUNT)
💬 For support or bug reports, you can contact me on Discord:
cassablanca0_
Available Versions
How to Install Fluorium on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.5).
Install Mod
Open the mod browser in the dashboard and search for "Fluorium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Fluorium server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.
Is Fluorium compatible with fabric?
Fluorium officially supports fabric for Minecraft 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fluorium – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Fluorium 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.
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Rent Modded Server
Install Fluorium with just one click on your server.