All Fisch Mutations and How to Get Them

The open-world fishing simulator on Roblox, Fisch, has an impressive RNG feature that occasionally grants you unique variants of the regular fishes. This can be achieved passively using better fishing rods or manually by taking them to the Appraiser. This feature is called Mutations and can bump up the prices of the fish you catch. Want to know what exact benefits all mutations provide? Keep reading as we detail all Fisch mutations, their benefits, and how to get them all right here.

In Fisch, the mutations depend on the luck factor and would be visible on the fish you are reeling in. Certain mutations are applied only when using a dedicated rod, while others can be found during certain server events. These multipliers can increase or decrease your fish’s sale value according to its corresponding multiplier. With that said, here is a list of all Fisch mutations in the game.

Editor’s note: We update the list of Fisch mutations on September 27, 2025.

Standard Fisch Mutations

As of the latest Fisch Luminescent Cavern update, players can get more than 100 mutations. That said, here are the regular mutations:

Admin Event Fisch Mutations

Admin-exclusive events can take place anytime when summoned by an administrator. And if you’re able to join one of these, you can have a chance to get the following mutations in the game:

Limited-Event Exclusive Fisch Mutations

The mutations below can only be obtained during certain events. However, you can use the Fisch rods linked below to get them nonetheless.

Apart from the abovementioned ones, three more mutations are currently unobtainable in the game. This includes the Sandy (1.2x sale value), Female (1x sale value), and the Unsellable (0x sale value) mutations. While the first could be obtained during the Pharaoh’s Curse, the second one, when the player is wearing female accessories, and the third one could be obtained only through codes.

List of All Fisch Attributes

Although you cannot have multiple mutations on a single fish, you can definitely have a few attributes stacked upon a particular mutation. Attributes in Fisch are of four types, which are as follows:

The best thing about the attributes is that you can get them while appraising and won’t lose them, except for the big and giant fishes. The latter two can be removed if the fish’s weight is depressed enough.

How to Get Mutations in Fisch

Besides the methods, there are a few more ways you can get mutations. These are:

1. Appraiser and Chiseler NPCs

Now you know that you can easily get the above mutations due to the passive ability of a few rods. However, there’s another way to get them manually through two NPCs. You’ll find an Appraiser NPC beside the Merchant at Moosewood (445, 150, 210).

If you bring your fish or any item and interact with the NPC asking them to appraise its value, they will do so for just 30% of the current fish’s sell value in C$. However, this price can be reduced to 22.5% if you have the Appraiser’s Luck game pass.

Appraising a fish or any item can increase or decrease its weight or apply a random mutation to it. The rate of having a mutation applied to the fish is very low on a normal day. So, waiting for the Mutation Surge event is recommended since it will increase the rate of mutated fish by 15%.

Apart from the Appraiser, you have another such NPC, known as the Chiseler, at Ancient Isles. This NPC will chip all your Amber fishes and give them either a Purified or a Revitalized mutation. The Chiseler will ask for just 100 cash to do this job. It is further reduced to just 75 cash if you have the Appraiser’s Luck game pass.

2. Weather-Based Events

As mentioned above, the Mutation Surge event increases the chance of getting mutated fishes by 15%. However, it’s worth noting that a few other events also enhance your odds of getting mutated fishes. These are:

• Starfall: 5% chance to get the Nova mutation
• Rainbow: 15% chance to get the Mythical mutation, 5% chance to get the Rainbow Cluster mutation, and an increased 5% chance to get Shiny and Sparkling attributes
• Eclipse: 10% chance to get the Solarblaze mutation
• Shiny Surge event, which increases your chances of catching Shiny fish by 3%
• Night of the Luminous event, which increases your chances of getting sparkling fish by 10%
• Moonlight Mirage event, which increases the chances of getting the Lunar mutation

Apart from these, you can also check our weather events guide to get an idea of all the admin-exclusive mutations available in Fisch.

3. Treasure Chests and Baits

Finally, you can fix treasure maps you get from fishing and unlock treasure chests in your world to find fish with the Sunken mutation. Moreover, various Fisch baits, including Aurora Baits and Chocolate fish, allow you to obtain fish with the respective mutations.

Since these baits are event-specific and are currently unobtainable from crates, you might think of using a Scrapper Fisch enchant on your rod, as it reduces bait consumption by 60%. Finally, you can also consider redeeming the latest Fisch codes to get some baits for free.

And now you know about all Fisch mutations and how to get them. Which one do you feel is the easiest to get into the game and also provides the best value? Let us know in the comments below!