We sell what we'd run on our own ponds.
Filters, medications, pumps, and the systems that hold them together — curated and stress-tested by a team that keeps show-grade koi every day. If it can't perform under real load, it never makes it onto this site.
Built by koi people, for koi people.
Most pond stores are run by people who don't keep koi. They sell what fits in a warehouse and ships cheap. Kenko works differently: we sell the equipment we use ourselves.
Every filter, every medication, every pump on this site has earned its place on our own systems — the ponds that hold koi worth more than a car. If a product doesn't deliver under real load, it doesn't stay in the catalog. The filtering is the whole product.
Shop by system.
Every piece you need to build a serious koi pond — organized by what it actually does, not where it sits on the shelf.
Quantum RDF Filter
Self-cleaning rotary drum filters built for serious koi loads. Our most-loved product line, and the first stage of every system we recommend.
Explore filters →
Three things every product here has to be.
Tested on our own systems
Every product in this catalog has spent time on the ponds holding our own show-grade koi. If it doesn't hold up under real load, it doesn't get listed. Specs alone don't earn shelf space.
Backed by people who keep koi
Questions get answered by a team that keeps koi for a living. Not a chatbot. Not a script. Real keepers who can tell you what you actually need.
Spec-truth, not sales fluff
We'll tell you when a $200 piece of equipment is the wrong call for your pond. We'll tell you when the cheaper option is better. The relationship matters more than the next transaction.
What koi keepers reach for.
The equipment our team reaches for first — proven on our own systems and trusted on yours.
Kenko Quantum 8000 RDF
Self-cleaning rotary drum filter. 70 micron, 8,000 GPH, made in the Netherlands.
W.Lim UV Sterilizer
Green water and algae solved at the molecular level. The sterilizer we run on our own ponds.
Kenko Medications
Parasite and bacterial treatments. The brands we reach for when our own koi need them.
Build the pond your koi deserve.
Have a question about your build? Ask us — real koi keepers, honest answers, and the truth instead of a sales pitch.