American Flagfish (Jordanella floridae)
The American Flagfish, also known as Florida Flagfish, is a species of killifish native to Florida. It is well known for its ability to consume hair algae, making it a valuable addition to planted or algae-rich aquariums.
Males display a distinctive red and pale green striped pattern along their body, with a dark bluish patch on the side that resembles the canton and stars of the American flag.
These fish are mildly aggressive and territorial, so they should be housed in community tanks with similarly active and compatible species such as large danios, certain tetras, cichlids, or most barbs.
Available as juveniles, approximately 1.0 to 1.25 inches in length.
| Species | Jordanella floridae |
|---|---|
| Size (adult) | 1.0 – 1.25 inches |
| Aggression Level | Mildly aggressive / territorial |
| Best Tank Mates | Large danios, certain tetras, cichlids, most barbs |
| Algae Eating Ability | Strong, especially hair algae |
FAQ
What does the American Flagfish eat?
The American Flagfish primarily feeds on hair algae and is especially effective at consuming this type of algae in aquariums.
How big do American Flagfish grow?
These fish grow to about 1.0 to 1.25 inches in length when mature.
Are American Flagfish suitable for community tanks?
They can coexist in community tanks with similarly active fish such as large danios, certain tetras, cichlids, or most barbs, but should not be mixed with very shy or slow-moving species.
Dan Greene –
I added the American Flagfish to my planted tank and they’ve been actively eating hair algae for weeks. The red and green stripes are very noticeable and add a nice visual touch. They’re not overly aggressive and get along well with my tetras and danios.
Elizabeth James –
The fish arrived healthy and were about the right size. They’ve been in the tank for two months and I’ve seen a noticeable reduction in algae on the back wall. A little territorial at first, but settled after a week.
David Randall –
Great addition to my community tank. The fish are active and clean the algae efficiently. The color pattern is striking and adds a unique look to the aquarium.