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Digital Passport & QR
Photo, variety, bloodline, breeder certificate, and a QR code linking to the public profile of each fish.
Hobby Journal · Since 2026
The art of keeping koi, recorded
with care.
Every fish has a story — its bloodline, its pattern, how fast it grows. MyKoi.My.Id keeps it all: measurements, water quality, costs, and contest preparation.
Free for your first 3 fish · No credit card required
Philosophy
"Good koi are born from good water. Good water is born from consistent care."
Koi hobbyists in Japan record everything by hand — morning temperature, appetite, pattern changes. MyKoi.My.Id carries that tradition into the digital era: every measurement, every expense, every contest preparation is neatly recorded and always there when you need it.
Features
One place for everything koi
From your home pond to the show arena — twelve connected modules.
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Growth Tracking
Growth curves, breed-average benchmarks, and a chronological photo timeline of every fish.
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Water Quality Advisor
Log 10 parameters per pond — pH, ammonia, nitrite, nitrate, KH, oxygen and more — with concrete action advice.
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Keeper & Boarding
Fish boarded with keepers: location, duration, and cost estimates, all recorded.
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Contest Readiness
Size-class, health status, and measurement freshness per fish, plus checklists from D-30 to show day.
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Health & Quarantine
Health cards with symptoms, treatment, and quarantine logs for every new arrival.
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Feeding Management
Feeding schedules, a dose calculator based on weight and water temperature, and feed product records.
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Maintenance & Stock
Water changes, filter cleaning, and equipment service on schedule — plus feed and supply stock alerts.
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Reports & Reminders
Pond reports, CSV exports, and daily 07:00 reminders via push notification and email.
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Share Cards
Turn growth into a beautiful 1080×1350 card — photo, stats, and your fish's story — ready to share on WhatsApp or Instagram.
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Quick Log
Feeding and water checks in one tap from the dashboard. No long forms, no friction.
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Your Data, Yours
Download everything — every table and every photo — as one ZIP file. Years of records are never held hostage.
Public Gallery
Show off your koi to the world
Publish your koi profile and it will appear in the public gallery — a living showcase of the community's finest fish.
How It Works
Get started in three steps
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One
Sign up free
Create an account in one minute. Your first three fish are free, forever.
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Two
Record
Add your ponds and fish, then log the first measurement.
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Three
Monitor
Get daily reminders and watch everything grow — the data and the costs.
FAQ
Frequently asked questions
Is it really free?
Yes. The Free plan covers 3 fish, 1 pond, and 1 keeper — free forever, no credit card. Upgrade only when your collection grows.
Does it work offline by the pond?
MyKoi.My.Id is a PWA: install it to your phone screen and keep recording even without signal. Data syncs automatically when you are back online.
How do daily reminders work?
Every morning at 7, you get a digest: feeding schedules, overdue water-test reminders, keeper bills, and approaching contest checklists — via phone notifications and email.
Is my fish data safe?
Your data lives on a private server under a protected account. Only you can see your collection; nothing is shared with third parties.
Which payment methods are supported?
QRIS and Virtual Accounts from BNI, BRI, CIMB Niaga, and Permata — processed securely via Pakasir.