The Scorpion Carp is a fish that can be found in The Desert during all seasons and can also randomly be purchased from the Traveling Cart for between 450-1,000g.
It is the only other fish that can be caught in the Desert, besides the Sandfish. Since it is more valuable than the Sandfish, it is also more rare to get a bite from a Scorpion Carp, and the difficulty is significantly greater. Catching the Scorpion Carp requires Fishing level 4, either naturally or by using fishing Buffs.
Scorpion Carp can be placed in a Fish Pond, where they will reproduce every 4 days. The initial pond capacity is 3 fish, but the capacity can be increased to 10 by completing two quests. The primary output is dark brown Scorpion Carp Roe, but Cactus Seeds are also possible at population 10.