🐾 Koi Pet in Grow a Garden — Mythical
Koi is a Mythical pet from the Zen Event, bought in the Zen Shop after growing the Zen Channeller's tree 4 times. It is an egg saver: when you hatch an egg, there's a chance you get the egg back.
Last verified against the Koi page and the ability data on the Grow a Garden wiki.
Zen Shop (Zen Event).
📋 Koi at a glance
| Rarity | Mythical |
|---|---|
| How to get | Zen Shop, after growing the Zen Channeller's tree 4 times (Zen Event) |
| Hunger | 2,500 |
| Ability (wiki wording) | Fish of Fortune: When hatching eggs, there is a chance to get the egg back! Cannot recover Premium, Exotic or Rainbow eggs. The bonus is capped at 50% per egg hatched. |
| Cooldown | None: it rolls on every egg you hatch |
| Added | July 19, 2025 (Zen Event) |
| Still obtainable? | No, per the wiki |
⚡ What Fish of Fortune does
Each egg you hatch has a 1% chance to come back. Per the wiki, the egg is placed back where it was, not refunded to your inventory. It doesn't work on Premium, Exotic or Rainbow eggs. Several Koi can stack, up to a 50% cap per egg.
The wiki notes the Koi got a large buff on July 26, 2025, and that its shop description once wrongly said it raised hatch luck. Koi also come in different colours.
📈 Koi stats by weight
| Pet weight | Chance to get the egg back |
|---|---|
| 5 kg | 2.1% |
| 10 kg | 3.2% |
| 25 kg | 6.5% |
| 41 kg | 10% |
The chance grows 0.22% per kilogram and caps at 10% at about 41 kg. Five Koi at that weight reach the 50% stacking cap.
⚡ See Koi's ability at your pet's weight →
❓ FAQ
What does the Koi do in Grow a Garden?
Each egg you hatch has a 1% to 10% chance to come back. It doesn't work on Premium, Exotic or Rainbow eggs, and the stacked chance caps at 50%.
How many Koi are worth running?
Five at about 41 kg or more reach the 50% cap per egg.
How do you get a Koi?
It was sold in the Zen Shop after growing the Zen Channeller's tree 4 times during the Zen Event.