All pets
PET
KOI EGG
Koi
Cosmic
$12M/s
Wiki data synced Oct 24, 2026 · on the wiki since Sep 3, 2026
Base income
$12M/s
Found in
Cherry Blossom
󰅂
Drop chance
4.36%
Base size
120 kg
Steal reward
+4.2m Speed, $1.2b
Grow time
25m
STATS
About 1 in 23 eggs that spawn in Cherry Blossom is a Koi.
16
eggs · 50% chance
52
eggs · 90% chance
Eggs you need to see to get at least one, from the wiki's spawn chances.
HATCH ODDS
Size
Normal
Golden
Rainbow
120 kg (base)
$12M/s
$30M/s
$42M/s
1,200 kg
$49.6M/s
$124M/s
$174M/s
12,000 kg
$205M/s
$513M/s
$719M/s
Same formula as the calculator. Golden ×2.5, Rainbow ×3.5; pets can carry more than one mutation.
INCOME BY SIZE
Also in Cherry Blossom
Crane · Salamander · Red Panda · Snowy Owl · Stag · Oni Tiger · Kitsune
RELATED PETS
󰏌
Koi on the Steal An Egg Wiki
Community data from the Steal An Egg Wiki (CC BY-SA) · Updated Oct 24, 2026