Browse 10+ manufacturers in the koi & aquaculture industry.
Germany
Oase is a German manufacturer of pond equipment, fountains, and water garden products founded in Hörstel, Germany in 1949. Their FiltoClear, BioSmart, and other filter lines are among the most widely sold pond filters in Europe and North America. Oase products are known for engineering quality, integrated features like UV clarifiers, and long product lifecycles.
United States
Aqua Ultraviolet has been manufacturing UV sterilization equipment for aquaculture, koi ponds, and aquariums in Temecula, California since 1983. Their UV sterilizers are used in koi ponds of all sizes from small hobby installations to large public displays. Aqua Ultraviolet is known for high-output lamps, quality quartz sleeves, and reliable long-term performance.
Germany
Tetra Pond is the pond and water garden division of Tetra, a global aquatics brand owned by Spectrum Brands. They produce pond filters, pumps, UV clarifiers, water conditioners, and koi food sold at major garden centers and pond retailers. Tetra Pond products are widely accessible entry points for beginning pond keepers and are reliable for small to medium koi pond applications.
United States
Atlantic Water Gardens is a US-based manufacturer of pond pumps, filters, aeration equipment, and water feature components headquartered in Mantua, Ohio. Their products are standard in the professional pond installation industry and are sold through pond and landscape supply distributors. Atlantic's TidalWave pump line and waterfall filters are commonly specified in new koi pond construction projects.
United States
Sequence Pumps manufactures high-efficiency centrifugal pond pumps designed for large koi ponds, aquaculture systems, and water features requiring continuous high-volume flow. Their pumps handle solids-laden water and are known for low power consumption relative to their flow output. Sequence is a preferred pump brand among professional koi pond designers and serious hobbyists with large pond volumes.
Japan
Dainichi is a Japanese koi food manufacturer producing premium pelleted diets used by competitive koi keepers and serious hobbyists worldwide. Their formulas are formulated for color enhancement through high-quality astaxanthin and spirulina content, and for overall health through digestible protein sources. Dainichi foods are particularly popular among American koi enthusiasts seeking Japanese-quality nutrition for show-grade fish.
United States
Blue Ridge Fish Hatchery is a working fish farm in North Carolina that produces its own line of koi and goldfish food under the Blue Ridge brand. The food was developed for use on their own fish, which gives it a practical credibility beyond marketing. Blue Ridge food is known among American koi keepers as a reliable, good-value alternative to premium Japanese brands, available in large bulk bags suitable for high-volume feeding.
Italy
Hanna Instruments is an Italian manufacturer of portable and laboratory water quality testing equipment headquartered in Padova, Italy with significant US operations in Woonsocket, Rhode Island. They produce digital pH meters, ammonia meters, and multiparameter photometers used in koi pond management, aquaculture, and environmental monitoring. Hanna instruments offer significantly greater accuracy than color-comparison test kits for critical water quality decisions.
United States
Anjon Manufacturing is a US-based producer of pond liners, pond filters, aeration equipment, and pond accessories sold through water garden and pond trade channels. Their Frog Filter line provides biological waterfall filtration for mid-size koi ponds, and their liner products use 45-mil EPDM rubber for durability. Anjon is a recognized brand among professional pond installers in the United States.
Canada
Laguna is the pond and water garden brand of the Rolf C. Hagen Group, a large Canadian pet products company headquartered in Montreal. The Hagen Group also owns Exo Terra, Fluval, and other well-known aquatic and pet brands. Laguna pond pumps, filters, and pond products are sold at major garden centers and home improvement stores, making them one of the most accessible pond brands for beginning koi keepers.