PoltergeistC$16.3MStableNightmare ×8.8
Nightmare: ×8.8, a event mutation from FischFright 2025. The Appraiser can roll it. On the best fish, Magician Narwhal, it sells for 5,588,000 C$ at average weight.
- Multiplier
- ×8.8
- Type
- Event
- Appraisable
- Yes
- Event
- FischFright 2025
- Rank in event group
- #1 of 29
Most valuable fish with Nightmare
Value = the wiki's average sell price × 8.8, at average weight.
PoltergeistC$16.3M
Magician NarwhalC$5.59MStableNightmare ×8.8
Bloop FishC$4.69MStableNightmare ×8.8
AshclawC$2.82MStableNightmare ×8.8
Corrupted MegalodonC$2.2MStableNightmare ×8.8
Elder MossjawC$2.02MStableNightmare ×8.8
10 most valuable Nightmare fish
Price at each fish's average weight with ×8.8, and the same with Shiny or Sparkling (×1.85) on top. Fish where the wiki's own numbers disagree are left out.
| # | Fish | Avg weight | Nightmare | + Shiny |
|---|---|---|---|---|
| 1 | Magician NarwhalApex | 12,700 kg | 5,588,000 | 10,337,800 |
| 2 | Bloop FishApex | 160,000 kg | 4,692,864 | 8,681,799 |
| 3 | Corrupted MegalodonSpecial | 55,000 kg | 2,420,000 | 4,477,000 |
| 4 | Elder MossjawSecret | 1,000,000 kg | 2,015,200 | 3,728,120 |
| 5 | AshclawApex | 350,000 kg | 1,971,200 | 3,646,720 |
| 6 | Corrupted ScyllaSpecial | 500,000 kg | 1,887,600 | 3,492,060 |
| 7 | Corrupted FloppySpecial | 50 kg | 1,822,859 | 3,372,289 |
| 8 | Corrupted KrakenSpecial | 50,000 kg | 1,760,000 | 3,256,000 |
| 9 | Corrupted MosslurkerSpecial | 500,000 kg | 1,760,000 | 3,256,000 |
| 10 | CharybdisApex | 2,500,000 kg | 1,738,000 | 3,215,300 |
Other FischFright 2025 mutations
Mutations with a similar multiplier
Using the Nightmare mutation
A fish carries one mutation at a time and the multiplier applies after the weight price, then the game rounds up. The same ×8.8 is worth far more on a heavy, high price-per-kg fish than on a small one, so check your catch in the sell calculator before you sell. Compare it with every other multiplier on the mutation list.
Frequently asked questions
How much is the Nightmare mutation worth in Fisch?
Nightmare multiplies a fish's price by 8.8. On the fish that pays most at average weight, Magician Narwhal, that is 5,588,000 C$ (10,337,800 C$ with Shiny or Sparkling).
Can you get Nightmare from the Appraiser?
Yes. Fisch Wiki marks Nightmare as appraisable, so the Appraiser in Moosewood can roll it when you pay to reroll a fish.
Which event has the Nightmare mutation?
FischFright 2025. Other mutations from it: Jack's Curse (×8.5), Necrotic (×7.4), Wicked (×6.6), Spooky (×6), Frightful (×6).
Data from Fisch Wiki (fisch.fandom.com), licensed CC BY-SA 4.0. We reformatted it and added the calculations. Last synced Nov 11, 2026. In-game prices can change with each update, so treat the game as the final word.