If you’ve been seeing players showing off fish surrounded by glowing runes, crackling lightning, and a dark purple aura, chances are you’ve come across the Gravitas Mutation. It’s one of the most valuable mutations currently available in Fisch, and for good reason—it dramatically increases the value of every qualifying catch.
The catch? You can’t get it with just any fishing rod.
In this guide, I’ll explain exactly how to unlock the Gravitas Mutation, which rod you need, and what you’ll have to do before you can start farming these high-value fish.
How to Get Gravitas Mutation in Fisch (Roblox)
The Gravitas Mutation is a premium fish mutation that increases a fish’s sell value by 9.81x. That makes it one of the best mutations in the game if your goal is earning coins quickly or collecting rare, high-value catches.
Besides the huge value boost, Gravitas fish are easy to spot thanks to their unique appearance.
A fish with the Gravitas Mutation features:
- A black and purple body colour
- Orange fog surrounding the fish
- Lightning effects
- Glowing runic symbols floating around it
If you’re after rare-looking fish for your collection, Gravitas is easily one of the most impressive mutations visually.
How to Get the Gravitas Mutation
Unlike some mutations that can appear naturally under certain conditions, the Gravitas Mutation is tied to a specific fishing rod.
To obtain Gravitas fish, you’ll need the Olympian Godbreaker Rod.
Once you’re using this rod, every fish you catch has a 30% chance to receive the Gravitas Mutation.
That same 30% chance also applies whenever you successfully catch fish using the rod’s Black Hole ability, giving you even more opportunities to land valuable mutated fish.
How to Unlock the Olympian Godbreaker Rod
Getting the Olympian Godbreaker Rod isn’t something you can do immediately. It’s considered an end-game rod, so you’ll need to meet several requirements before it’s available.
Step 1: Wait for an Olympian Devil to Be Caught
First, someone on your server must successfully catch an Olympian Devil.
Once this happens, a portal will appear, giving players access to the Olympian Fisher area where the rod becomes available for purchase.
If nobody catches the Olympian Devil, the portal won’t open, so you’ll need to either wait or join another server where the event has already occurred.
Step 2: Meet the Purchase Requirements
Before you can buy the Olympian Godbreaker Rod, you’ll need:
- 50,000,000 Coins
- 100% completion of several Bestiaries
The required Bestiaries include:
- Bologona’s Frenzy of War
- Apollo’s Song of Light
- Poseidon’s Storm of Floods
- Zeus’s Thunder of Chaos
- Hades’ Underworld of Indefinite
- Olympian Fisher
Only after completing all of these requirements will the rod become available for purchase.
Gravitas Mutation Chance
Once you’ve unlocked the Olympian Godbreaker Rod, the mutation chances are straightforward.
| Method | Gravitas Chance |
|---|---|
| Normal fishing with the Olympian Godbreaker Rod | 30% |
| Black Hole ability | 30% |
This is one of the highest guaranteed mutation rates available, making the rod extremely effective for farming valuable catches.
The Gravitas Mutation is currently one of the strongest money-making mutations in Fisch. With its impressive 9.81x value multiplier, eye-catching visual effects, and a generous 30% mutation chance from the Olympian Godbreaker Rod, it’s well worth working towards if you’re in the late game.
Although unlocking the rod requires a hefty 50 million Coins, a server event, and full completion of multiple Bestiaries, the investment pays off if you’re serious about farming coins or building an impressive mutation collection. Once you have the Olympian Godbreaker Rod in your hands, landing Gravitas fish becomes far more consistent, making it one of the best tools for high-profit fishing.