Freshwater Fish
American Flag Fish.
A North American killifish with a red, white, and blue-green pattern that really does suggest a flag. Hardy and beginner-friendly, and one of the better natural algae grazers — including hair algae. It can be nippy, so give it a 10-gallon-plus tank with room and tankmates that aren't too delicate.
Prices change with size and with each shipment. Call to check today's price.
Call (814) 456-9445We keep this species. What's in our tanks changes with every delivery, so call (814) 456-9445 before you drive in. We never ship live animals.
- Condition
- new
- Fulfillment
- Local pickup — Erie, PA
We never ship fish, coral, or invertebrates — every animal here is one you meet in person. Each one is acclimated and health-checked in-house before it goes out into the display tanks. This is a species we keep, and what is swimming on any given day changes with the deliveries, so please call (814) 456-9445 before you drive in.
Care at a glance
What to know before you take one home.
- Care level
- Hardy, and forgiving of the swings a new tank throws at it.
- Temperament
- Will chase or nip if it feels crowded.
- Community
- Works in a mixed tank if you pick the tankmates carefully.
- Adult size
- 2.5"
- Min tank size
- 10 gallons
- Diet
- Eats meat and greens both.
- Scientific name
- Jordanella floridae
Good tank mates
Semi-aggressive and a known fin-nipper, so pair it with similarly-sized, not-timid tankmates rather than dropping it into a peaceful nano community. It tends to do best in a species tank or with sturdy, faster fish: larger danios like giant danios, fast rasboras, or rainbowfish. Avoid long-finned or slow fish (bettas, fancy guppies, angelfish) and anything small enough to harass. If you're unsure about a specific pairing, call us and we'll help you match it.
Good to know
Native to the swamps and slow waters of Florida, the American flag fish is a North American killifish named for the red, white, and blue-green pattern on the male that resembles a flag.
What is in the tanks and each animal’s temperament vary — call (814) 456-9445 for pairing advice.
Good tankmates
Plays well with.
Species we’d keep in the same tank, with why each pairing works. What is in the tanks and each animal’s temperament vary — call (814) 456-9445 for advice on pairing.
New to stocking a tank? Read our guide on which fish live together.
Zebra Danio
A proven flagfish tankmate. Zebra danios are fast-swimming, similarly sized, and active enough not to be intimidated by a semi-aggressive male flagfish. Their speed reduces fin-nipping exposure and their water-parameter needs (pH 6.5–8.0, 65–77°F) overlap comfortably with the flagfish's preferred range.
Bronze Cory
A proven flagfish tankmate. Peaceful, armored bottom-dwellers that occupy a completely different tank zone than the flagfish, eliminating territorial overlap. Their armor plating also makes them less vulnerable to opportunistic nipping, and they thrive in the same temperature and pH band.
Assorted Platy
Livebearers as a group are good flagfish companions. Platies are hardy, similarly sized (1.5–2.5 in), and share the flagfish's preference for slightly alkaline, moderately hard water. Their fins are short and rounded rather than flowing, reducing the fin-nipping risk that affects long-finned livebearers like fancy guppies.
Visit the store
660 East 14th Street,
Erie, PA.
Mon–Fri 12–6 · Sat 11–4 · Sun closed. Call ahead on livestock — what's on the floor rotates.