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American Flagfish (Jordanella floridae)


The American Flagfish or Jordanella floridae gets its name because the male fish resembles the American flag. It has large blackish-blue dots and alternating red and blue stripes on its body. The female of this species is larger then its male counterpart, and has more of a yellow coloration. You can check out a a male and female Flagfish courting in the video below.

Sometimes simply known as the Flagfish, this species of Killifish is native to Flordia, but often kept in an aquarium setting. They are a small freshwater fish that only grows to about 2-1/2" long, so an aquarium of only 10 gallons is needed to house them. Flagfish are known for their ability to control algae in an aquarium which makes them all the more popular. They will also eat brine shrimp, tubifex and flake foods and are considered to be easy to care for.

If you have any additional information about the American Flagfish please leave us a comment below.

1 comment:

IBmikmaq said...

The males are aggressive and extremely territorial! The females however have no need to claim territories since they have no part in guarding eggs or young that is left to the males! Females are basically egg laying cows that spend their days non stop grazing on algae! So for those who have community tanks a group of females would be a great addition to control algae!
Flag fish will eat every type of algae found in aquariums!

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