Koi
CosmicKoi's listing, pool, rarity, and any shown income are independent-reference data, not a developer-published stat sheet. The primary reference recorded for this pet supports the documented fields; the official Roblox game page confirms the broader loop of stealing eggs, hatching pets, earning money, training Speed, and discovering mutations.
Hatches from
Source egg.
Quick stats
Base income and availability.
This species' model weight for the game's size/income scaling — each individual pet's weight can be higher or lower.
Koi income calculator
Live calculator for Koi.
Base income: $12M/s · Cosmic · Biome: Cherry Blossom
Enter the pet's displayed weight, not the egg's weight. Reference weight: 120 kg. Leave empty to compare at reference size.
The species’ model weight used by the game’s size/income scaling — not your pet’s actual weight. Read-only from the dataset.
| Window | Total earned |
|---|---|
| 10 minutes | $7.2B |
| 30 minutes | $21.6B |
| 1 hour | $43.2B |
| 8 hours | $345.6B |
| 24 hours | $1.04T |
Prefer the standalone tool? Open Koi in the full Pet Income Calculator.
Income table
One copy at reference size with the documented mutation scalars; bonuses add above ×1 rather than multiplying.
| Variant | Per second | Per minute | Per hour | Per day |
|---|---|---|---|---|
| Base | $12M | $720M | $43.2B | $1.04T |
| Silver ×1.25 | $15M | $900M | $54B | $1.3T |
| Golden ×2 | $24M | $1.44B | $86.4B | $2.07T |
| Rainbow ×5 | $60M | $3.6B | $216B | $5.18T |
| Golden ×2 + Rainbow ×5 | $72M | $4.32B | $259.2B | $6.22T |
How to get
Where this pet comes from.
Hatch Koi Egg in the Cherry Blossom biome — you need 2,500,000,000 Speed to enter (train on your treadmill).
Eggs spawn at biome nests and reset every in-game night (4:30). Larger, more exotic egg variants have better odds at rare pets. Watch out for the Oni Tiger guarding the area.
Egg drops
Other pets hatched by Cherry Blossom Egg (the Cherry Blossom nest pool).
| Pet | Rarity | Income |
|---|---|---|
| Crane | Epic | $4K/s |
| Salamander | Legendary | $74K/s |
| Red Panda | Mythic | $450K/s |
| Koi | Cosmic | $12M/s |
| Snowy Owl | Cosmic | $7.5M/s |
| Kitsune | Divine | $1.8B/s |
| Oni Tiger | Eternal | $600M/s |
| Stag | Secret | $145M/s |
Exact drop rates are not published for any Steal An Egg egg — see the egg explorer.
Related
FAQ
How much income does Koi give in Steal An Egg?
Koi's documented base rate is $12M per second. Applying the documented mutation scalars gives $24M/s for Golden, $60M/s for Rainbow, and $72M/s for Golden + Rainbow (mutation bonuses add above the base ×1 rather than multiplying); those scalars are not developer-published values.
How do you get Koi?
Hatch Koi Egg in the Cherry Blossom biome (requires 2,500,000,000 Speed). Eggs spawn at nests and reset every in-game night (4.5 minutes).
What rarity is Koi?
Koi is Cosmic.
How do mutations affect Koi's income?
Mutations stack additively on top of Koi's documented base rate: Mutation Factor = 1 + Σ(Scalar − 1), so Golden + Rainbow gives ×6, not ×10. The pet's weight adds a nonlinear size factor on top: scale = ∛(pet weight ÷ 120 kg), the species' documented reference weight. The official game page confirms mutations exist, but this site has no developer-published multiplier table, so treat every scalar as a sourced estimate rather than an official guarantee.
Is Koi currently obtainable?
Koi is marked obtainable in the current data snapshot. Availability can change with game events, so check the listed biome or egg pool in-game before farming.