Welcome to KoiQuanta

KoiQuanta is your koi pond management and care OS. We provide free, professional-grade tools for koi keepers of all experience levels.

What you can do with KoiQuanta:

Calculate pond volume for planning, filtration, and verified label arithmetic

Create separation, observation, water-testing, and recordkeeping checklists for new fish

Schedule water changes with exact gallons and calendar dates

Track water parameters and set automatic alerts

Check unit-compatible arithmetic from values copied from a current product label

Build symptom timelines to share with your vet

Create intake checklists for new koi arrivals

Plan filtration maintenance on a 6-month calendar

Prepare winterization checklists based on your climate zone

Compare daily water parameters to spot trends early

Getting started is simple -- just pick any tool from the Tools page and start using it. No account required for the free tools.

The AI assistant (chat bubble in the bottom-right corner) is available on every page to answer questions, explain tools, or provide koi care advice.