An American tropical-fish farm is not a room full of glass tanks. In much of Florida it is a pond dug into the ground, out in the open air — and one reason the farms sit where they sit is how close the airport is.
Start with a surprise about what fish farming in Florida is for. The University of Florida says freshwater tropical ornamental fish culture is the largest component of aquaculture in the State of Florida — a bigger part of it than any fish raised there to eat. About 200 Florida producers raise over 800 varieties of freshwater fishes between them.
Basis: University of Florida/IFAS Extension, EDIS FA054 “Freshwater Ornamental Fish Commonly Cultured in Florida” (Hill and Yanong): “Freshwater tropical ornamental fish culture is the largest component of aquaculture in the State of Florida… There are about 200 Florida producers who collectively raise over 800 varieties of freshwater fishes.”
They are not raised in glass tanks. UF says that in much of Florida the most common method is the earthen pond — a pond dug straight into the ground, outdoors. In Miami-Dade County, where the ground is coral rock, farmers use above-ground tanks and small ponds cut into that rock instead.
Basis: UF/IFAS EDIS FA054: “In much of Florida, earthen pond culture is most common. However, Miami-Dade County farmers use above-ground tanks and small ponds dug into the coral rock bed.”
Why the farms sit where they sit is not a mystery — UF lists the reasons. The industry is concentrated in Hillsborough, Polk and Miami-Dade counties, and the major reasons are historic factors, a warm climate, being close to airports, and easy access to equipment, supplies and feed. The farms also cluster together on purpose: many growers sell their fish to other farms, which then ship them on to customers across the United States and the world.
Basis: UF/IFAS EDIS FA054: “Historic factors, warm climate, the proximity to airports and other infrastructural considerations (ready access to aquaculture equipment, supplies, feed, etc.) are the major reasons for this distribution. Having other farms nearby is advantageous because many growers sell their product to other farms which, in turn, ship to customers throughout the United States and the world.”
The fish in those Florida ponds come, as families, from all over the planet. UF describes the carp-and-minnow family alone as native to Africa, Asia, Europe and North America, with the greatest variety in southeast Asia — and lists barbs and “freshwater sharks” from Africa and Asia, danios and rasboras from southern and southeast Asia, alongside goldfish and koi.
Basis: UF/IFAS EDIS FA054: “These fish are native to Africa, Asia, Europe, and North America. The greatest diversity is found in southeast Asia,” with barbs, danios, rasboras, freshwater sharks, goldfish and koi listed among the groups cultured in Florida.
So is the fish in your local pet store a Florida fish? That is the tempting conclusion — and this data cannot support it. The USDA table behind the quiz counts what farms in the United States sold. It says nothing at all about aquarium fish brought in from other countries, so how the two compare sits outside the table.
※ A hypothesis is an idea that isn't proven yet.
📊 Sources for the rankings mentioned in this note (links to the original data and retrieval dates) are on each quiz page below.