As of the Halloween World Update, there are NINE mutations in Deep Fishing: Gold, Wet, Frozen, Toxic, Electro, Cursed, Diamond, Lava, and Cosmic. These mutations increase the sale value of the fish you catch and increase the earning rate of the fish you place in the Pond. You can catch mutated fish during certain weather events, and you can also add or change mutations on your fish using Mutations Reroll. See our full guide below to learn more about the Deep Fishing Mutations mechanic.
If you are not making enough money to buy the best Fishing Rods or can’t afford constant Upgrades, you need to start catching fish with mutations. Sell the ones with the weak mutations and put the high-value ones in your Pond. In this complete Deep Fishing Mutations guide, we’ll tell you how to get mutated fish, what the multipliers of each mutation are, and everything else. So, let’s get to it.
All Deep Fishing Mutations - Multipliers & How to Get
As of the Halloween World Update, there are NINE different mutations in Deep Fishing. Two of these mutations (Gold and Diamond) have a random chance to spawn on the fish. The remaining can only affect fish during certain weather events. See the table below to learn more.
| Mutation | Multiplier | How to Get |
|---|---|---|
| Gold | Increases the fish’s sale value and earning rate by 2x. | Fish with the Gold mutation have a random chance to spawn when fishing. |
| Wet | Increases the fish’s sale value and earning rate by 2.5x. | You can catch fish with the Wet mutation during the Rain Weather Event |
| Frozen | Increases the fish’s sale value and earning rate by 3.5x. | You can catch fish with the Frozen mutation during the Blizzard Weather Event |
| Toxic | Increases the fish’s sale value and earning rate by 4x. | You can catch fish with the Toxic mutation during the Toxic Weather Event |
| Electro | Increases the fish’s sale value and earning rate by 5x. | You can catch fish with the Electro mutation during the Thunder Weather Event |
| Cursed | Increases the fish’s sale value and earning rate by 6.5x. | You can catch fish with the Cursed mutation during the Cursed Weather Event |
| Diamond | Increases the fish’s sale value and earning rate by 8x. | Fish with the Gold mutation have a random chance to spawn when fishing. |
| Lava | Increases the fish’s sale value and earning rate by 12x. | You can catch fish with the Lava mutation during the Volcano Weather Event |
| Cosmic | Increases the fish’s sale value and earning rate by 15x. | You can catch fish with the Cosmic mutation during the Cosmic Weather Event |
Apart from weather events, you can also add or change the mutation on any fish by talking to the Mutation Dealer. Equip the fish you want to add or change the mutation on, talk to the Mutation Dealer, and use the Mutation Rerolls to get a different mutation.

When you interact with the Mutation Dealer, you can see the odds of every mutation in the top-right corner of your screen.
How to get Mutation Rerolls in Deep Fishing
Mutation Rerolls can be obtained via Fishing. You can also buy Common and Ultra Rerolls using Robux. Ultra Rerolls increase the chances of getting mutations.
While you’re here, make sure you redeem the latest Deep Fishing Codes for some free Cash, Baits, and Potions.