Fisch: Mutations Guide

While fishing in Fisch, you may have noticed that some of your catches have a different appearance and cost a little more than usual. All this is due to a special feature that imposes mutations on fish.

Mutations not only boost the value of the catch but also affect its appearance in this Roblox game. But of course, many of them can only be obtained by fulfilling certain conditions, such as using a special fishing rod. Here’s a detailed rundown on all the mutations in Fisch and how to get them.

Updated November 30, 2025, by Artur Novichenko: Catching fish is your primary source of income in Fisch, so you’ll want fish with rare mutations to increase their value several times over. The developers frequently add new fish variations. So, we’ve updated this guide with all the new mutations and how to obtain them.

All Mutations in Fisch

A mutation is an RNG-based effect in Fisch. Players can notice that their catch has a mutation already at the reeling stage. For example, with an Electric mutation, the fish gets an electric aura.

It is also worth noting that each mutation boosts the value of the fish. And the higher the bonus, the more difficult it is to get it. For your convenience, here is a list of all mutations available in Fisch:

Mutation Events in Fisch

One of the main ways to get the desired mutation in Fisch is by fishing during events that randomly occur when day and night change. Some of them slightly increase your chances, while others significantly boost them.

• Night of the Luminous – Increases Sparkling catch rate by 10%.
• Shiny Surge – Increases Shiny catch rate by 3%.
• Mutation Surge – Increases the chance of catching a fish with a mutation by 15%.
• Eclipse Weather Event – Increases Solarblaze catch rate by 90%.
• Blizzard Weather Event – Increases Blighted catch rate by 25%.
• Avalanche Weather Event – Increases Sleet catch rate by 10%.

Related

How to Get the Depths Key in Fisch

The Depths Key has an Exotic rarity in Fisch, which makes it incredibly difficult to catch. Here’s all you need to know to acquire this item.

Mutation Fishing Rods in Fisch

Some rods in Fisch boost the catch rate for certain mutations. Moreover, some mutations can only be obtained by using the appropriate rods when fishing:

• The Lost Rod – Allows you to get a Lost mutation.
• Kings Rod – A great choice for Big or Giant mutations.
• Abyssal Specter Rod – Increases the chance of getting an Abyssal mutation.
• Seasons Rod – The only way to get Seasonal mutations.
• Aurora Rod – Allows you to get an Aurora mutation.
• Phoenix Rod – Increases the chance of getting a Scorched mutation.
• Ethereal Prism Rod – Allows you to get a Prismize mutation.
• Rod Of The Zenith – The only way to get Wrath mutation.
• No-Life Rod – Increases the chance of getting a Hexed mutation.
• Zeus Rod – Allows you to get a Charred or Electric Shock mutation.
• Summit Rod or Avalanche Rod – Increases the chance of getting a Sleet mutation.
• Poseidon Rod – Allows you to get a King’s Blessing mutation.
• Haunted Rod – The only way to get Ghastly or Sinister mutations after the Halloween event.
• Midas Rod – Increases the chance of getting a Midas mutation.
• Celestial Rod – The only way to get a Celestial mutation.
• Sunken Rod – Allows you to get a Studded mutation.
• Voyager Rod – Increases the chance of getting a Fossilized mutation.
• Auric Rod – Allows you to get Aureate, Aureolin, Aurous, Aurulent, and Aurelian mutations.
• Kraken Rod – The only way to get a Tentacle Surge mutation.
• Trident Rod – The only way to get a Heavenly mutation.
• Free Spirit Rod – Allows you to get a Bloom mutation.
• Heaven’s Rod – A great choice for Big or Giant mutations.
• Crystalized Rod – Increases the chance of getting a Crystalized mutation.
• Mythical Rod – Increases the chance of getting a Mythical mutation.
• Brick Rod – Allows you to get a Studded mutation.
• Rod of The Eternal King or Scurvy Rod – Increases the chance of getting a Greedy mutation.
• Summit Rod or Ice Warpers Rod – The only way to get a Blighted mutation.
• Seraphic Rod – Increases the chance of getting a Blessed mutation.

Other Ways to Get Mutations in Fisch

In addition to the methods described above, Fisch offers players several more methods to get catches with various mutations, and by combining all these methods, you can fish even more effectively.

Enchantments

• Abyssal – Increases the catch rate for the Abyssal mutation by 10%.
• Noir – Increases the catch rate for the Albino and Darkened mutations by 10%.
• Blessed – Increases the catch rate for Sparkling and Shiny mutations by 2%.
• Mutated – Increases the catch rate for fish with a mutation by 7%.
• Ghastly – Increases the catch rate for the Translucent mutation by 20%.
• Quantum – Increase the catch rate for the Subspace mutation.
• Chaotic – Increase the catch rate for the Chaotic mutation.
• Blood Reckoning – Increase the catch rate for the Sanguine mutation.
• Anomalous – Increase the catch rate for the Anomalous mutation.

NPCs

The Appraiser NPC who lives on Moosewood can increase the cost of your catch and impose a random mutation in Fisch. Luckily, the bonuses from server events apply to this NPC.

Also, players should visit the Chiseler NPC at the Ancient Isle. With his help, you can change the Amber-mutated fish to Revitalized or Purified mutations.

Treasure Chests

These chests spawn when players find the corresponding Treasure Maps, and among all the possible drops from the chest, you can get a fish with a unique Sunken mutation.

Nuke Explodes

When using Nuke, all fish in the explosion zone receive a Nuclear mutation in Fisch. This effect lasts up to 30 minutes, after which players will not be able to get a Nuclear catch.

Baits

Another good way to obtain rare mutations is through bait. Some of them not only increase your stats but can also mutate your catch, although they are quite rare:

• Chocolate Fish – Chocolate mutation.
• Holly Berry – Jolly mutation.
• Lucky – Blarney mutation.
• Aurora Bait – Aurora mutation.

Unique Locations

Also, some locations in Fisch have unique mutations. So, if you’re looking to get Electric or Abyssal mutations, you should fish in these locations:

• The Depths – The only place where you can find the Abyssal mutation.
• Grand Reef – The only place where you can find the Electric mutation.

Released

September 1, 2006

ESRB

Teen / Diverse Content: Discretion Advised,
In-Game Purchases (Includes Random Items), Users Interact

Developer(s)

Roblox Corporation

Publisher(s)

Roblox Corporation

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