Ozark Fisheries is a 4th generation family owned and operated ornamental goldfish and koi farm founded in 1926. Our Martinsville, Indiana location was established in 1899 as Grassyfork Fisheries and is the oldest, continuously operated private fish farm in the United States. Grassyfork Fisheries earned Martinsville the moniker of “Goldfish Capital of the World.” It now serves as a goldfish and koi production and shipping facility for 6 varieties of goldfish and 2 varieties of koi. Farm tours are available for groups upon request. For 8 years, Ozark Fisheries has hosted numerous groups in conjunction with the National FFA convention held in nearby Indianapolis. Tours are $10 a person with a $100 minimum. Farm tours are rain or shine though some modifications can be made to accommodate inclement weather. This is a hands-on tour of an aquaculture facility so you will be exposed to water and all things fish related with closed toe shoes recommended. Please contact us or visit our website for more information!