Adult Champion B – ZNA Potomac Koi Show Koi Show Winners, ZNA Potomac Koi Show Adult Champion B ZNA Potomac Koi Show – 2013 Variety: Ginrin Kohaku Owner: Chuck L Search Our Koi Champions by Tag 9/1/2013, Adult Champion B, Chuck L, Ginrin Kohaku, ZNA Potomac Koi Show Posted on April 24, 2016 ← Young Champion B – ZNA Potomac Koi Show Grand Champion – ZNA Potomac Koi Show →