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FintasticMinecraft mod for 1.21.1

yet another mod that adds fish and aquarium keeping related items and blocks

client and servernewest supported release 1.21.1UtilityAdventureMobsDecoration
Latest version
1.21.1-3.3
Loaders
Forge, NeoForge
Licence
MIT
Downloads
41.8k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Fintastic servers

One click and Fintastic is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Fintastic declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Fintastic’s own host. Nothing is re-hosted here.

Most recently published release

1.21.1-3.3release19 Jul 2026

fintastic-1.21.1-3.3.jar · 10.3 MB · for 1.21.1 · NeoForge

Download this release
f441f4153022…
Older versions12
  • 3.211 May 20261.20.110.3 MB8.3k downloads8909eb3fe5b9…Get
  • 3.11 May 20261.20.110.3 MB719 downloads616a9664e19f…Get
  • 3.021 Apr 20261.20.110.2 MB1.2k downloads4137add6ae1f…Get
  • 2.221 Oct 20251.20.18.7 MB16.2k downloads7a4d54300baf…Get
  • 2.113 Aug 20251.20.18.7 MB5.3k downloads86f7ba479a7d…Get
  • 2.01 Aug 20251.20.18.7 MB1.5k downloads6a45dd17220f…Get
  • 1.524 Jan 20251.20.128.9 MB7.4k downloads0a74ffe9548e…Get
  • 1.428 Nov 20241.20.128.9 MB897 downloads67bde953d8ca…Get
  • 1.31 Nov 20241.20.128.9 MB372 downloads8b1062e31425…Get
  • 1.226 Oct 20241.20.128.9 MB235 downloads3c17744496d2…Get
  • 1.126 Oct 20241.20.128.9 MB104 downloadsd6ccc1cd53e4…Get
  • 1.023 Oct 20241.20.128.9 MB157 downloads5ea6789363e9…Get

Frequently asked

Does Fintastic work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Fintastic declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Fintastic support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Fintastic on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Fintastic support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Fintastic?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Fintastic under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Fintastic?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Fintastic safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from Modrinth, where the author last updated it on 19 Jul 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .