Fish Breed Guides / Koi
Koi: feeding guide
The pond dog — it will learn your footsteps and eat from your hand.
⚖️ Healthy weight: 40–90 cm · up to 15 kg ⏳ Lifespan: 25–50 years (some documented 100+) 📍 Origin: Japan (Niigata, from common carp)
TameFood-motivatedSociableLong-lived
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Feeding a Koi: the honest notes
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Feed koi pellets 1–2 times daily in warm months, only what they eat within 5 minutes; the rest fouls the pond.
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Below ~10°C water they stop digesting: switch to wheat-germ food, then stop feeding entirely in winter.
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Their enthusiasm at feeding time is theatrical — koi beg better than dogs. Stay disciplined; obesity shortens their famously long lives.
These are breed tendencies, not a prescription. For the actual amount, the calculator uses your pet's real body weight and life stage — the same veterinary formula vets use.
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