Lawrence's Ambient Fireflies
A very light Mod/Datapack that adds fireflies as ambient particles to the Swamp and Mangrove Swamp
Screenshots
About this Mod
A small and very lightweight pack that adds fireflies as ambient particles to the Swamp and Mangrove biomes.
It'll work with most other datapacks? It for sure won't work with any other mods/datapacks that directly change swamps/mangrove swamps directly so just keep that in mind.
Will not work on Realms
Available Versions
How to Install Lawrence's Ambient Fireflies on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Lawrence's Ambient Fireflies". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 25w44a, 25w43a (+8 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Lawrence's Ambient Fireflies server crashes on startup – what to do?
Most common cause: wrong datapack 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 Lawrence's Ambient Fireflies compatible with datapack and fabric and forge and neoforge and quilt?
Lawrence's Ambient Fireflies officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.11, 25w44a, 25w43a. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Lawrence's Ambient Fireflies – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Lawrence's Ambient Fireflies 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.
Similar Mods
Rent Modded Server
Install Lawrence's Ambient Fireflies with just one click on your server.