
Fish and Bizz
Fish and Bizz adds a variety of aquarium fish among other creatures. Simulate the fishkeeping experience by breeding your fish, all the while trying to balance everything else to keep them alive. In Beta due to overhauls and experimental features
Screenshots






About this Mod
Visit the GitHub page or preferably dm me directly on Discord to report issues, I check the git once every few months
In Beta due to overhauls and experimental features
Adds aquarium fish and the ability to breed them inspired by 8SidedSquare's angling mod.
I am currently only updating versions in the latest update possible
Entities
- (Mostly) Breedable modded fish with fish food
- Over 25 aquatic entities (disregarding their precursor life stages)
- An average of 1.8022 E+16 amount of possible variants per fish
- Replaces vanilla squid and tropical fish entities with more detailed new ones
- Includes non-fish aquatic creatures
- Entities of differing sizes will attack each other unless pacified!

Simulated Nitrogen System
Waste generated by captive fish and others build up over time in their bodies,
use the Nitrogen Detector from copper to keep track of their nitrogen levels. Once their levels reach 1200 they will begin taking damage proportional to the amount they've reached over that threshold. Use plants or filters to buffer their increase, or isolate fish with high levels until they return to normal.
Terrestria compatibility
Entities can spawn in certain Terrestria biomes.
Available Versions
How to Install Fish and Bizz on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Fish and Bizz". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.20, 1.19.3
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Fish and Bizz 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 4 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is Fish and Bizz compatible with fabric?
Fish and Bizz officially supports fabric for Minecraft 1.20.1, 1.20, 1.19.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fish and Bizz – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Fish and Bizz 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 Fish and Bizz with just one click on your server.