Mobs Mods for Minecraft Java
Browse 25 free Mobs mods for Minecraft Java — popular picks include Fish of Thieves, DragN’s Bettas & Aquatics!, Underwater Village.
Updated daily

Fish of Thieves
A mod adds all the fish from Sea of Thieves, fish fer ye pirate!
DragN’s Bettas & Aquatics!
Betta fish and decorative, customizable aquariums!
Underwater Village
Discover a lot of new oceanic structures!
Fish Tanks
Adds fish tanks for your favorite aquatic friends!
fapdos' Aquatic Additions
Adds many new fish creatures and underwater decorations to the game
Sea Creeps
Sea Creeps have swam into Modrinth! The ocean just got explosive...

Deep Waters
mermaids dimension
World Alive: Ambient birds and wildlife
Particle based client side ambient birds and wildlife, based on cosy critters and creepy crawlies. Also contains other ambient things such as mirages in the desert, distant players on horseback, distant boats in the ocean.
Nauticlysm
Adding new nautilus mobs with different variants for ocean biomes!

Pufferz
Want more aquatic animals & plants to fill your aquariums? Well then look no further!
UnderDasea
A mod that aims to add life to the oceans.
Aquatic Plugin
This is a Minecraft Plugin wich adds many Ocean and Fish releated things to Minecraft
Fish Rework - Fishing
A plugin that reworks the fishing mechanic, by fishing up unique sea creatures instead of normal fish. Custom drops, items, armor, weapons, skill progression, recipes, custom GUI, advancements, artifacts and more.
Motley Fins
Updates aquatic biomes, adding blocks and a new mob!
Bambrooms
Bambrooms makes bamboo into Backrooms wallpaper, sea lanterns into flourescant lights, haybales into carpets, and wallpaper PAINTINGS! (creeblet and alban)

Bambrooms (alternate version)
Bambrooms makes bamboo into Backrooms wallpaper, sea lanterns into flourescant lights, haybales into carpets, and wallpaper PAINTINGS! (creeblet and alban)
Vanilla Shutters Mod (1.21.11, 1.21.1) – 15 Shutter Variants
Vanilla Shutters Mod adds a versatile and decorative way to control light and privacy in your Minecraft builds. Whether you want to enhance your home’s aesthetics, manage light in underwater structures, or add a functional toggle to your mob farm, this mod has you covered. With 15 different variants, these shutters are waterloggable, support redstone […]
Axolotl Paintings Resource Pack (1.21.1, 1.20.1) – Texture Pack
Axolotl Paintings Resource Pack aims to replace the game's standard artwork with an array of axolotl-themed paintings, adding a fun and playful touch to your home decorations. These high-qualified changes simply makes every piece of art a delightful celebration of these cute aquatic creatures. All in all, it is an absolute treat for all axolotl […]
Ocean's Enhancements
Mod enhancing ocean's environment with sea horses, sea shells, pearls, anemones and more!
Subaquatic
Adds lots of ocean related things to 1.12.2! Including real ocean biomes, bug fixes, new mechanics, and more!
Koi Mod 1.16.1 (New Aquatic Animals)
Koi Mod 1.16.1 adds into the game a new species, which is the famous Koi fish. Inspired by the Japanese's cultures, the Koi or more specifically named jinli or nishikigoi, are colored varieties of the Amur carp that are kept for decorative purposes in outdoor koi ponds, water gardens or aquariums. These beauties represent a […]
Archosaur Survival
Archosaur Survival reimagines classic Minecraft by adding custom trees, animals, improved farming and cooking, and toggleable combat. Experience realistic ocean physics, dynamic weather with storms and tornadoes, custom furniture, and detailed blocks.
Integrated Seven Seas Data Pack (1.21.1, 1.20.1) – Battle Hostile Pirate Ships
Integrated Seven Seas Data Pack overhauls the structures from When Dungeons Arise – Seven Seas. It decorates ship interiors using blocks and items from Create, Quark, Supplementaries, and Farmer's Delight. The data pack adds more monsters inside each vessel and balances chest loot for survival gameplay. Every ship now spawns only in deep ocean waters […]
Alex's Caves 9minecraft Mod (26.2) – Battle Dinosaurs and Mutants Deep Underground
Alex's Caves 9minecraft Mod fills the underground world with massive custom biomes, unique monsters, and rare treasures. You find prehistoric zones with dinosaurs, radioactive tunnels with green mutants, and deep trenches full of glowing sea life. Each underground space gives you fresh armor, weapons, tools, and decorative blocks to collect. This mod turns basic mining […]
Better Fishtanks Mod (26.1.2, 1.20.1) – Build Massive Aquariums for Your Pet
Better Fishtanks Mod lets you build custom aquariums to keep your favorite underwater pets. This mod adds special glass tanks that connect together to make huge habitats for any fish you catch. You can decorate the tanks with plants, rocks, and even sunken ships to make them look amazing. It also adds a fun system […]