Breeder: Sekiguchi
Sekiguchi Koi Farm (関口養鯉場) is in Minamitanaka, Minami-Uonuma, Niigata — deeper snow country than Ojiya, and a farm that has stayed in one family for three generations. Kosuke Sekiguchi started it breeding Kohaku, Sanke and Asagi; his grandson Masayuki Sekiguchi runs it today across around 40,000 square metres.
Sekiguchi is a Showa farm, and a young-koi powerhouse in particular — their Showa have taken Young Koi Grand Champion at the All Japan Nishikigoi Show repeatedly in recent years, and a Showa took Grand Champion at the 32nd All Japan Young Koi Show in 2015. They also breed Benigoi, Ginrin Kohaku and Sanke, and Tancho. Pearl Ginrin — the heavy, domed pearl-like scale rather than the flat sparkling kind — was developed here.
Masayuki spawns late, around the end of June, and has said openly that the goal is an 85cm Showa that still holds its pattern at that size. That is a harder target than it sounds: most Showa patterns that look balanced at 50cm stretch and break up as the fish grows.
Sekiguchi koi available now
Everything here was imported by House of Koi. We chose almost every older koi individually at the farm, and those are one-of-a-kind: each listing carries video of that exact fish with its size, sex and year born, and closes when that fish sells. Tosai are bought both ways: we pick many out of the pond ourselves, and others come as a mix we chose at the farm, in which case the listing covers a group of young koi rather than one named fish.
This is a single-fish collection right now — one Showa, which is the variety worth buying from this farm.
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