How to Get Secret Rocket Fuel in Fisch

In the latest Fisch update (version 1.20.2), a new item called Speed Boots was added. These boots let you run faster, but before you can get them, you need to complete a quest for Dr. Crookspine. He’ll ask you to find Rocket Fuel, which isn’t as straightforward as it sounds. If you’re struggling to locate it, this guide will walk you through everything step by step.

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Fisch Rocket Fuel Guide – Where to Find

Rocket Fuel is a secret fish in Fisch (spoilers it’s not actually a fish) that you need to catch for Dr. Crookspine’s invention quest for the GlimmerSuit Boots. You won’t just find it anywhere—you have to fish in the right spot. A lot of players waste time fishing in random locations, but if you know where to go, it’s actually pretty easy to find, but a long time to catch.

Head to Moose Grove Swamp in Fisch

Go to Moose Grove Swamp—this is the only place where you can fish up Rocket Fuel.
- Coordinates: (X: 2426, Y: 130, Z: -680)
If you’re not sure where it is, check the map and head toward the Orca Migration area.
It works just like finding Resin Fish—you need to keep fishing until you catch the Rocket Fuel fish.

How to Catch Rocket Fuel in Fisch

Equip your best fishing rod. The Banana Heaven’s Rod is great for this if you have it.
- When hooked, the player will get a -20% progress speed penalty.
Start fishing in Moose Grove Swamp. There’s no trick to it—you just have to be patient.
If you’re not getting Rocket Fuel, server luck helps a lot.
- Try joining a server with high server luck (100+ is ideal).
  - Weird Algae is then recommended.
Server resets will wipe out luck bonuses, so keep an eye on that.

How Rare Is Rocket Fuel in Fisch?

It’s rumored, not confirmed, that you have a 0.2% chance to catch the Rocket Fuel, but this is the rate before adding on server luck and the like.

What If You’re Not Getting Rocket Fuel?

Try switching servers—some servers seem luckier than others.
Make sure you’re in Moose Grove Swamp. If you’re anywhere else, you won’t find it.
Be patient. It might take a few casts, but it’s easier than some of the other secret items.

Getting Rocket Fuel in Fisch is all about fishing in the right place. Instead of wasting time in the wrong spots, head to Moose Grove Swamp and keep casting your line. You’ll get it eventually, and once you do, you’ll be one step closer to completing Dr. Crookspine’s quest and unlocking those Speed Boots.

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