Welcome to the Art of Koi Keeping
Koi are among the most rewarding fish to keep — living jewels that can grace your pond for decades. This guide covers the essentials for getting started successfully in Canada.
1. Water Quality Is Everything
Koi don't live in water so much as they live through it. Before adding fish, cycle your pond and test regularly for pH, ammonia, nitrite, and nitrate using a master test kit. Always treat tap water with a conditioner to remove chlorine and chloramine.
2. Filtration & Aeration
A quality pressurized filter with a UV clarifier keeps water clear and healthy, while a reliable pump and good aeration keep oxygen levels high. Size your equipment to your pond volume with room to spare.
3. Feeding Through the Seasons
Feed a color-enhancing food in warm months (above 12°C) and switch to an easy-to-digest wheat-germ formula in spring and autumn. Stop feeding once water drops below ~8°C — koi metabolism slows and uneaten food fouls the water.
4. Surviving the Canadian Winter
Koi overwinter dormant at the bottom of the pond. The key is keeping a hole open in the ice so toxic gases can escape — a floating de-icer and an air stone do the job. Never smash the ice; the shock can harm your fish.
5. Quarantine New Arrivals
Always quarantine new koi for 2–4 weeks before introducing them to your main pond, and have a broad-spectrum treatment on hand. This protects your existing collection from parasites and disease.
Have questions? Reach out anytime — we're here to help your koi thrive.