Radioactive Carp — Stardew Valley Fishing Guide

See all Stardew Valley fish →

Put Radioactive Carp in a Fish Pond on the farm and it produces items daily — higher populations unlock better output. (population 1)

Roe×1–2	pop any	84%
Roe×1–4	pop any	79%
Roe×1–4	pop any	75%
Roe×1–4	pop any	72%
Roe×1–2	pop any	50%
Roe	pop any	43%

See the full fish pond guide →

Give Radioactive Carp as a gift to build friendship. Each villager reacts differently — pick someone who loves it for the biggest friendship boost. Gifts given on a villager's birthday count 8× — a loved gift jumps from +80 to +640 friendship.

• NeutralDemetrius🎂 Summer 19Elliott🎂 Fall 5Leo🎂 Summer 26Linus🎂 Winter 3Pam🎂 Spring 18Sebastian🎂 Winter 10Willy🎂 Summer 24
• DislikesAbigail🎂 Fall 13Alex🎂 Summer 13Caroline🎂 Winter 7Clint🎂 Winter 26Dwarf🎂 Summer 22Emily🎂 Spring 27George🎂 Fall 24Gus🎂 Summer 8Harvey🎂 Winter 14Jas🎂 Summer 4Jodi🎂 Fall 11Kent🎂 Spring 4Krobus🎂 Winter 1Leah🎂 Winter 23Lewis🎂 Spring 7Marnie🎂 Fall 18Maru🎂 Summer 10Penny🎂 Fall 2Robin🎂 Fall 21Sam🎂 Summer 17Sandy🎂 Fall 15Shane🎂 Spring 20Vincent🎂 Spring 10Wizard🎂 Winter 17
• HatesEvelyn🎂 Winter 20Haley🎂 Spring 14Pierre🎂 Spring 26

Other items in the Fish subcategory you might want IDs for.

• Legend
• Legend II
• Crimsonfish
• Son of Crimsonfish
• Mutant Carp
• Glacierfish
• Glacierfish Jr.
• Angler
• Ms. Angler
• Lava Eel
• Ice Pip
• Blobfish

Item spawning in Stardew Valley isn't accomplished through typical commands. Instead, it involves a cheat method where you name your character, or an animal, with the item code of the desired item, enclosed in square brackets [ and ]. Include the brackets when naming.

Spawn Using Animal Name

To spawn this item, buy an animal (we recommend a chicken because it is the cheapest) from Marnie's Ranch, name it [901]. You will then receive the Radioactive Carp item.

Spawn Using Character Name

Since you can only set your character's name once at the game's inception, we advise using the animal naming method.

However, if you opt for this method, name your character [901] while creating your save file. When you converse with any villager who mentions your name in their dialogue, like Gus at the Stardrop Saloon, you'll receive the Radioactive Carp item.