Niwa Nishikigoi is a UK supplier of premium Japanese koi, built around a passion for koi keeping and a commitment to personalised customer service. The brand serves both experienced collectors and newcomers, offering expert advice to help customers choose koi and care for their fish and ponds. Its live koi selection includes fish from Japan across a range of price points, with customers able to enquire about special requests. Niwa Nishikigoi also arranges live koi delivery through APC and offers Japan koi buying trips and koi health services.

Alongside fish, the company sells products designed to support healthy, attractive ponds. Its range includes koi food and automatic feeders, air pumps, water pumps, heating, filter media, filtration systems, UV clarifiers, water testing and treatment products, pond medications, topical treatments and other pond accessories. These products help with feeding, circulation, oxygenation, water quality and fish health. Customers can shop online, browse special offers and access advice through the brand’s website.