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American Flagfish

Regular price $5.99 USD
Regular price Sale price $5.99 USD
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American Flagfish

Common name: Florida flagfish, American flagfish

Scientific name: Jordanella floridae

Distribution: Southern Florida in the United States

Habitat: Marshes, drainage ditches, and other shallow, weed-choked bodies of water

Temperature: 65 – 82°F

pH: 6.0 – 8.0


Adult size: 2.5 inches

Sexing: Mature males are much more colorful than females. Mature females will have a dark spot on the back of the dorsal fin that is absent in males

Diet: Unfussy omnivore that will readily take all sorts of dried, frozen, and live foods. A good portion of their diet consists of plant matter such as filamentous algae, which they will graze on in the aquarium.

Conspecifics: Males can be territorial with other males, but can be kept together as long as there is sufficient cover in the aquarium to break up lines of sight.

Tankmates: Peaceful with other community fish.

Notes: Jordanella floridae is considered an excellent algae eater because it will graze on filamentous algae such as hair algae or black beard algae in the aquarium. A U.S. native, this killifish is tolerant of both tropical and subtropical water conditions and makes a good pond fish in warmer regions, although it will have to be overwintered indoors when temperatures drop below 60°F.

Housed in our huge fish warehouse here in San Diego, California, with thousands of other fish species. Please let us know if you have any questions before deciding to purchase by emailing us at

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