
Fish and Bizz
Java mod listed for Minecraft 1.20. File opened and checked on 6 Oct 2026; downloads from the MC Java Mods app on Android.
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…
⬇ Download on Modrinth







[On development hiatus]
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.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as fishandbizz-2.2.2.jar — drop this file into the mods folder
- Download size: 1.7 MB
- Download link checked 11 Oct 2026 — working
These come from our own check of the pack file, not from the source page.