Blåhaj

Craftable Blåhaj plushies (now dyable)

1.8K Downloads

datapackfabricforgeneoforgequiltdecorationequipmentsocial

Rent Server with this Mod

Screenshots

About this Mod

Features

Craft the blåhaj, or one of the other variants.
Put a blåhaj on your head
Dual wield blåhaj?
Place your blåhaj on your beds (drop onto bed, and it places itself)
Dyable blåhaj

How to install

Datapack (recommended)

Put the Datapack zip file into the /datapack of your minecraft world folder
Put the required Resource Pack zip file into your resource pack folder of your minecraft installation.
Done 🦈

Mod (Fabric, Forge, NeoForge or Quilt)

Normally just to put the Mod jar file in the /mods foder in your minecraft installation.
Done 🦈

Blåhaj Render

Craft your haj

Replace this with a description

Blåhaj crafting

Put your haj to bed

Shark on bed

Put your haj on your head
Shark on Head

Haj!

Available Versions

1.4 MODrelease

MC 1.21.3fabric, forge, neoforge, quilt

November 23, 2024

1.4release

MC 1.21.3datapack

November 23, 2024

1.3 MODrelease

MC 1.21.3fabric, forge, neoforge, quilt

November 16, 2024

1.3release

MC 1.21.3datapack

November 16, 2024

1.2 MODrelease

MC 1.21.3fabric, forge, neoforge, quilt

November 8, 2024

How to Install Blåhaj on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.3).

Install Mod

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

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.3

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Blåhaj 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 3 GB RAM is allocated and the loader matches the mod version (1.21.3). You can switch loaders with one click in the panel.

Is Blåhaj compatible with datapack and fabric and forge and neoforge and quilt?

Blåhaj officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.3. 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 Blåhaj – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Blåhaj 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.