Fluid Levels
Designed for technical Minecraft players working with fluid mechanics. See water and lava levels directly in-world without the F3 menu. Source blocks show "S", flowing blocks show their level (8 down to 1). Toggle with F7.
Screenshots
About this Mod
Fluid Levels
A client-side Fabric mod that displays water and lava fluid levels directly in the game world. Perfect for technical Minecraft players who need to see fluid mechanics at a glance.
Features
- Shows fluid level numbers floating above each fluid block
- Source blocks display "S"
- Flowing fluids display levels 7 down to 1 (7 = closest to source)
- Falling fluids show the level value (matching F3 debug menu)
- Toggle on/off with F7
Supported Versions
| Minecraft | Java |
|---|---|
| 1.20.1 | 17+ |
| 1.20.4 | 17+ |
| 1.21.1 | 21+ |
| 1.21.4 | 21+ |
| 1.21.6 | 21+ |
| 1.21.7 | 21+ |
| 1.21.8 | 21+ |
| 1.21.11 | 21+ |
Download the JAR that matches your Minecraft version.
Requirements
Usage
Press F7 to toggle the display. Source blocks show S, all other fluids show their level (1-8) as seen in F3.
License
MIT
Available Versions
How to Install Fluid Levels 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 (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Fluid Levels". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.8, 1.21.7 (+5 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Fluid Levels 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 (1.21.11). You can switch loaders with one click in the panel.
Is Fluid Levels compatible with fabric?
Fluid Levels officially supports fabric for Minecraft 1.21.11, 1.21.8, 1.21.7. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fluid Levels – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Fluid Levels 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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