Japan Pet Design · Since 1819
Champion nutrition,
perfected in Japan.
For over 200 years, Japan Pet Design has perfected the craft of animal care. Today JPD is the food behind All-Japan show winners — precision formulas for color, growth, immunity and everyday health. Find yours in 10 seconds, or dive into the science.
What does your koi need most right now?
Pick a goal and we'll point you to the JPD formula built for it. New to koi nutrition? This is the place to begin.
Shop the JPD lineup
Tap Add for the most popular size, or open any food for full specs, ingredients and feeding notes.
Each food opens its live product page, where you choose pellet size, bag size, and floating or sinking.
Compare every formula
The same numbers, every food — so you can choose with confidence. Higher protein drives growth; lower ash means cleaner digestion.
Guaranteed analysis per manufacturer (floating formulas). "Color / Growth / Immune" rated relative to the JPD range.
Reading a koi food label
Four numbers tell you almost everything. Here's what they mean for your fish.
Protein
The growth engine. 35–40% suits most ponds; 45%+ (like Shori) pushes serious growth in warm water with strong filtration.
Ash & minerals
Ash is the mineral content left after digestion. JPD publishes a full guaranteed analysis on every formula — so you always know exactly what you're feeding.
Color enhancers
Astaxanthin, spirulina & paprika deepen reds (Beni); vitamin C keeps whites (Shiroji) crisp. AkaFuji stacks four of them.
Probiotics
Live cultures (Toyoserin) aid the gut, boost digestibility, and lower the ammonia your koi return to the water.
When & how much to feed
Koi are cold-blooded — water temperature, not the calendar, decides how they digest. Feed to the season.
Beyond the bag
Great koi take more than food. Consistent feeding and a healthy pond are what turn good fish into show fish — and JPD has both covered.
Why an auto feeder matters
Little & often
Koi digest best with small, frequent meals. In the warm growth window they want feeding 2–4× a day — an auto feeder never misses one.
Never skip a day
Work, travel, weekends — your koi keep eating on schedule. That consistency is what separates show koi from the rest.
Cleaner water
Precise, measured portions mean no overfeeding — less waste, better water quality, and healthier fish.
Why Mud Booster
Mud-pond minerals
Brings the trace-mineral balance of a natural clay pond to concrete and FRP/lined ponds that have none.
Buffers acid rain
Helps stabilize your water through the rainy season, protecting koi from sudden swings.
16 trace minerals
Absorbs impurities and supplies 16 minerals for clearer water, better skin and deeper color.
205 years of Japanese craft
Japan Pet Design traces its roots to 1819 — over two centuries devoted to animal health, today led by koi authority Ryuichi Yoshida. JPD is one of Japan's most respected names in koi nutrition, trusted by leading breeders.
Every JPD formula starts with super-premium fish meal and krill, then layers in targeted nutrition — color carotenoids, immune stimulants, heat-stable vitamins and probiotics — each built for a specific job. It's the difference between feeding a koi and developing one.
That trust is personal. Mystic Koi has known and worked with Yoshida-san for over 25 years — a friendship and partnership that brings JPD's very best straight to your pond.
Go deeper than the label
Guides, breeder interviews and feeding science — the future home for everything koi nutrition. (Roadmap preview.)