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/tank/null Mod for Minecraft 1.20.1, 1.16.5

improved fluid storage

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1 downloads
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Updated
Updated 24.10.2026

About the /tank/null mod

Ever wanted a bucket that didn't suck? Ever wanted something that could hold more than 1 fluid at a time? Well look no further because this is the mod for you.

Note: mod was completely rewritten for 1.20.1, some features have changed from 1.16 but the idea remains the same.

Inspired by the /dev/null, this hybrid portable tank/storage can pick up fluids, void overflow, and even pick up nearby fluids automatically when carried in the main hand.

Featuring:

Better fluid placing for less accidental waste

Before: trying to place fluids without overlapping is nearly impossible with a regular bucket

After: a tank on bucket empty mode can place fluids with ease and no waste.

there are 7 tanks with each tier increasing in both size and capacity.

1.20+

1: 9 tanks of 4000 mB each

2: 18 tanks of 16000 mB each

3: 27 tanks of 64000 mB each

4: 36 tanks of 256000 mB each

5: 45 tanks of 1024000 mB each

6:54 tanks of 4096000 mB each

7: 81 tanks of 247483647 mB each

1.16 and below

1: 3 tanks of 4000 mB each

2: 6 tanks of 16000 mB each

3: 9 tanks of 64000 mB each

4: 12 tanks of 256000 mB each

5: 15 tanks of 1024000 mB each

6:18 tanks of 4096000 mB each

7: 27 tanks of 247483647 mB each

Features:

Technical information: Like Dank Storage, the fluid inventories are not stored on the item, but stored on the save file to eliminate the chance of fluid dupe/void bugs.

The tank has 3 modes which are cycled with the cycle mode (default: i) keybind.

Bag: Allows opening the gui like a backpack and manipulating the fluids. Bucket Fill: For picking up fluids in world, the number of buckets picked up at a time can be adjusted via the gui. Bucket Empty: Places fluids inworld (if possible) like a regular block, avoids placing inside of an existing fluid block. Holding alt and right clicking while in the bucket modes will open the gui.

Gui

Fluids can be placed or removed from the gui slots using any fluid container such as a bucket.

Alt + click on any slot with a fluid will lock it which is indicated by a red border. Locking a slot will prevent another fluid from taking it's place, even if fully emptied. If a slot is empty but locked, Lock will display over the fluid

Bucket size: This controls how many buckets will be picked up while in bucket fill mode, uses the same calculation as the vanilla sponge. Sort: This is for sorting the fluid slots, the type of sort can be configured using the tank configs button.

Wrench: This is for configuring more advanced settings

  • Sort Mode: Change how fluids are sorted
  • Auto Sort: Whether the fluid inventory should sort itself after every inventory change

Want to commission a custom mod? Just want to chat? Have an issue needing additional discussion? Join the Discord:

Want to help support this mod and others? Donate to my Patreon in the link below

How to install /tank/null

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.15.2–1.20.1 on Forge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Forge

    The loader must match the game version of the mod file, for example Minecraft 1.20.1. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file TankNull-forge-1.20.1-0.jar (183 KB) for your game version.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: /tank/null should be in the list.

Minecraft 1.20.1 runs on Java 17: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.20.1ForgeTankNull-forge-1.20.1-0.jar183 KB 1
1.16.5—tanknull-2.3-1.16.4.jar102 KB
1.15.2—tanknull-1.5.jar112 KB

FAQ

Which Minecraft versions does /tank/null work on?

There are files for 1.20.1, 1.16.5, 1.15.2. The newest is 1.20.1.

Is /tank/null for Forge or Fabric?

Only for Forge: 1.20.1. There are no files for Fabric or NeoForge: a mod for another loader will not start.

Does /tank/null need other mods?

The author lists no required dependencies: the Forge loader is enough.

Which Java does /tank/null need?

Minecraft 1.20.1 runs on Java 17. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download /tank/null safely?

On this page: the file TankNull-forge-1.20.1-0.jar (183 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 4ddb3525cfca716b87e999f3a4e53e162eb8494a.

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