Better Fishtanks
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Build the aquarium of your dreams for your vanilla and modded fish. Better Fishtanks adds Connecting Fish Tanks & Decorations
Features machines that process raw materials or automation processes.
Forge is a popular mod loader for versions 1.1+ of Minecraft.
Neoforge is a fork of the Minecraft Forge available for versions 1.20.1+ of Minecraft. Many Forge mods are compatible with Neoforge and vice versa.
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
Quilt is a fork of the Fabric mod loader. Many Fabric mods are compatible with Quilt and vice versa.
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Better Fishtanks


Welcome to Better Fishtanks. This mod Adds... well as the name suggests Fish tanks... They can be decorated with many different Things (even some form other mods). We took a little different approach then the fully decorative Fishtank, but you can disable all non-essential features in the Config :)
Please Note: This mod focuses on the tanks. It does not add new fish on its own. It is designed to be the perfect companion for other mods that do! Also, we might have something that adds a couple new Fishies to your game coming up soon :)
✨ Features ✨
🔧 Functional Aquariums
- Our Fishtanks work a little Different from your standard Glass box. The fish kept in them need Food to survive but in return will produce Fish eggs that can be used to gain resources.
- Aquarist Table: The Aquarist table is your crafting station for almost everything that goes inside the Fishtank and everything that comes out of the Fishtank. U can use it to Craft Decoration & Fish food. It can also be used to Crack the Eggs the Fish produce to gain more or less valuable resources.
👜 Fish Management
- Fish Bags: Safely transport your fish (vanilla or modded) from one location to another.
- Random Fish Bags: Feeling lucky? Try a random fish bag to get a surprise vanilla fish!
🌿 Decorations and More
- There is a Wide range of Decorations for your fishtanks. You can either use vanilla stuff like seagrass, corals, amethysts or kelp or craft some custom stuff inside the Aquarist table. We also added support for Corals and other stuff from both Upgrade Aquatic and Hybrid Aquatic.
- Mini Shrimp: Mini Shrimp are a little addition to the Fish food system. They can be caught when fishing and can be crafted into a highly saturating fish food.
- Pellet Mix: A simple Craftable Fish food that will keep your fish fed for way longer.
How to Add Fish to Your Fishtank
The fish bag is your only way to pickup fish and release them back into the Fishtank. Simply grab a Fishbag, right-click on any catchable fish in the world and the fish will be safely stored inside the bag. The bag's texture will update to indicate it's no longer empty. Then release it into the Fishtank by shift-right-clicking on it. If you want to release the stored entity anywhere else simply shift-right-click at your target location.
Oh, and also, please fill your Fishtanks with water before, yes BEFORE!!! trying to release a fish into it... they need that stuff to survive...

✨Gameplay Details✨
🥫 Food Containers
- Container Store food in a more compressed way so you don't have to feed your fish manually every Day.
Also since that is a common concern: the feeding system is very generous so you will have no issue with your fish starving as long as you use one of the more filling fish foods, even if you aren't at your base for a couple of days. Additionally, there is a warning Popup if your fish are starving. - The containers can be Placed and picked up and will stack up to 9 per block
🥚 Fish Eggs
- The Fishtanks passively produce Fish Eggs
- They come in six rarity tiers: Common, Uncommon, Rare, Epic, Exotic, and Legendary.
- These Eggs can be cracked open into useful loot within the Aquarist's Table
🧑🌾 The Aquarist Villager
- Find a new Aquarist villager! They will trade you for various fish-keeping supplies, including fish food and some Decorations for your tank. Build an Aquarist Table near an unemployed villager to assign them this profession or find them in Plains Villages.
⚙️ Tech Mod Support (Create, etc.)
- Better fishtanks should be Compatible with most common Tech / automation Mods.
- The Fish Tank and Aquarist Table inventories are fully accessible. Use pipes or item transfer systems from mods like Create to automatically insert or extract items.
- You can also use fluid pipes to fill your tanks with water, making the filling process for Larger Aquariums Easier.
📖 JEI Integration
- All recipes Better Fishtanks add can be viewed in JEI this includes everything that can be crafted with the Aquarists table.
🔥 Nether Depths Upgrade & Lava Fishtanks Now supported!
- Fishtanks can now be filled with lava to support mods like Nether Depths Upgrade!
- The seagrass and Kelp from Nether Depths Upgrade can now be Used as Decor items when Nether Depths Upgrade is installed
⚙️ Config Options
- Feeding System: Toggle Require Food to determine if fish need to be fed to survive. When enabled, you must use Food Containers to keep your fish alive, or you can disable it for a purely aesthetic, low-maintenance aquarium.
- Custom UI Units: Choose how water levels are displayed in your Tank UI, with support for Percent, Buckets, or Millibuckets (mB) for better compatibility with tech mods.
- Advanced Captures: Enable the Fish Bag to capture specialized mobs like Drowned, Guardians, or Whales (Warning: Large fish may eat smaller tank mates!).
- Rendering Modes: Toggle between Vanilla Waterlogging or the new EXPERIMENTAL Entity Rendering system to change how water looks inside your custom tanks.

❓ FAQ ❓
Is this mod compatible with other fish mods
While we haven't tested with every mod, Better Fishtanks should be compatible with most mods that add new fish. You can add any fish to our tanks!
How can I put a Fish inside the Tank?
Shift Right-click the tank with a Fish bag that has a fish in it!
Can I use this mod in my modpack?
Absolutely! We'd be honored. All we ask is that you credit us and provide a link back to this CurseForge page.
If you are using the Curseforge app to publish your modpack it will be credited automatically!
I have an Idea for a new Feature:
Please write a Comment. If I think it's a good idea, and it's doable, it will probably be included in the next update!
Where can I report bugs?
Please use the comments on this CurseForge page to report any problems. If you need faster support or have more specific/private questions related to this mod. Please open a support ticket on our Discord server!

Future Plans
Most of the Development of Better Fishtanks is complete. We mainly focus on adding more Decorations and fixing bugs for now while working on our other projects.

❤️ Support Us ❤️
If you enjoy Better Fishtanks and want to support our development, please consider leaving a comment or sharing the mod with your friends. Your support motivates us to keep creating!
Happy fish-keeping!

~ Better Fishtanks ~
Welcome to Better Fishtanks 🐠, the ultimate mod for aquatic enthusiasts! This mod provides a complete framework to create beautiful, dynamic, and functional aquariums for all your fish, whether they are from vanilla Minecraft or your favorite mods.

Please Note: This mod focuses on the tanks and systems. It does not add new fish on its own. It is designed to be the perfect companion for other mods that do!
✨ Features ✨
🔧 Functional Aquariums
- Dynamic Fishtanks: Our fishtanks are more than just glass blocks. They are living ecosystems where you can house a wide variety of fish.
- Feeding System: Keep your fish happy and healthy by feeding them. Use one of the many new food types.
- Aquarist Table: The central hub for all your fish-keeping needs. Craft and manage your fishtanks and supplies.
👜 Fish Management
- Fish Bags: Safely transport your fish (vanilla or modded) from one location to another with our special fish bags.
- Random Fish Bags: Feeling lucky? Try a random fish bag to get a surprise vanilla fish!
🌿 Decorations and More
- Extensive Decorations: Customize your fishtanks with a massive collection of decorations. From tiny stones and branches to shipwreck remnants and tower fragments, you can create the perfect environment for your fish.
- New Food Sources: Farm your own fish food with the addition of mini-shrimp, which can be caught, cooked, and eaten.
- Pellet Mix: Craft your own special pellet mix for your fish.
How to Add Fish to Your Fishtank
The Fish Bag is your essential tool for populating your custom fishtanks! It allows you to safely catch and transport fish, making the process of creating your aquatic displays simple and intuitive.
Catching a Fish: Equip your Fish Bag and simply right-click on any catchable fish in the world. The fish will be safely stored inside the bag, and the bag's texture will update to indicate it's no longer empty.
Placing in a Fishtank: With a filled Fish Bag in hand, right-click on your Fishtank block. The fish will be released into the tank, and your Fish Bag will become empty, ready to catch another aquatic friend. This seamless interaction ensures you can easily manage and customize the inhabitants of your Better Fishtanks!
✨Gameplay Details✨
🥫 Food Containers
Container Store food in a more compressed way so you don't have to feed your fish manually every Day!
- Each container is designed for a specific food type: Flakes, Dried Kelp, Mini-Shrimp, and Pellets.
🥚 Fish Eggs
The Fishtanks passively produce Fish Eggs!
- They come in six rarity tiers: Common, Uncommon, Rare, Epic, Exotic, and Legendary.
- These Eggs can be cracked open into useful loot within the Aquarist's Table.
🧑🌾 The Aquarist Villager
Find a new Aquarist villager! They will trade you for various fish-keeping supplies, including rare fish eggs and exclusive decorations. Build an Aquarist Table near an unemployed villager to assign them this profession or find them in Plains Villages.
⚙️ Tech Mod Support (Create, etc.)
We love automation! Better Fishtanks is designed to be compatible with your favorite tech mods.
- The Fish Tank and Aquarist Table inventories are fully accessible. Use pipes or item transfer systems from mods like Create to automatically insert or extract items.
- You can also use fluid pipes to fill your tanks with water, making large-scale aquarium management a breeze!
📖 JEI Integration
Curious about a recipe? Better Fishtanks has full support for Just Enough Items (JEI). Browse all the items, blocks, and recipes this mod has to offer with ease!
🔥 Nether Depths Upgrade & Lava Fishtanks Now supported!
- Fishtanks can now be filled with lava to support mods like Nether Depths Upgrade!
- The seagrass and Kelp from Nether Depths Upgrade can now be Used as Decor items when Nether Depths Upgrade is installed
⚙️ Config Options
- Detailed Feeding System: Toggle Require Food to determine if fish need to be fed to survive. When enabled, you must use Food Containers to keep your fish alive, or you can disable it for a purely aesthetic, low-maintenance aquarium.
- Custom UI Units: Choose how water levels are displayed in your Tank UI, with support for Percent, Buckets, or Millibuckets (mB) for better compatibility with tech mods.
- Advanced Captures: Enable the Fish Bag to capture specialized mobs like Drowned, Guardians, or Whales (Warning: Large fish may eat smaller tank mates!).
- Rendering Modes: Toggle between Vanilla Waterlogging or the new EXPERIMENTAL Entity Rendering system to change how water looks inside your custom tanks.
❓ FAQ ❓
Is this mod compatible with other fish mods?
While we haven't tested with every mod, Better Fishtanks should be compatible with most mods that add new fish. You can add any fish to our tanks!
Can this mod run on Fabric?
While there are some Visual Glitches with the water, this mod can be run on Fabric using the Kilt mod!
The functionality of this mod stays the same, there are just some visual glitches with the water in the Tank when running it on Fabric. A Fabric version of this mod is planned for the Future, but for now we are focused on the Forge 1.21.1 Port and Finishing the 1.20.1 Forge Version of the Mod!
How can I put a Fish inside the Tank?
Shift Right-click the tank with a Fish bag that has a fish in it!
Can I use this mod in my modpack?
Absolutely! We'd be honored. All we ask is that you credit us and provide a link back to our CurseForge/Modrinth page. If you are using the Curseforge app to publish your modpack it will be credited automatically!
I have an Idea for a new Feature:
Please write a Comment on Curseforge or open a ticket on our Discord Server. If I think it's a good idea, and it's doable, it will probably be included in the next update!
Where can I report bugs?
Please use the comments on our CurseForge page to report any problems. If you need faster support or have more specific/private questions related to this mod. Please open a support ticket on our Discord server!
🚀 Future Plans 🚀
We are constantly working to improve and expand Better Fishtanks. Here are some features you can look forward to:
- Aquatic Plants: Live plants to further enhance your fishtank ecosystems.
- More new Decorations for the Fishtank!
❤️ Support Us ❤️
If you enjoy Better Fishtanks and want to support our development, please consider leaving a comment or sharing the mod with your friends. Your support motivates us to keep creating!
Happy fish-keeping!
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