Florida Flagfish (Jordanella floridae) is a beginner-level freshwater fish that needs at least 20 gallons and 65-80°F. A hardy native killifish relative from Florida with a red-spotted, greenish body and a dark tail spot. It eats soft algae and tolerates cool to warm water, but males can be pushy toward each other and other small fish.
Care facts at a glance
| Scientific name | Jordanella floridae |
|---|---|
| Family | Cyprinodontidae |
| Origin | Florida, United States |
| Adult size | 2-2.5 in |
| Minimum tank | 20 gallons |
| Temperature | 65-80°F |
| pH | 6.5-8.0 |
| Temperament | Peaceful to semi-aggressive; males are territorial |
| Social behavior | Pair or one male with several females |
| Swim level | Mid to bottom |
| Difficulty | Beginner |
| Diet | Omnivore: flakes, pellets, plenty of algae and vegetable matter |
| Typical lifespan | 3-5 years |
Quick tips
- Keep one male with several females.
- Offer vegetable foods or algae to keep it healthy.
- May nip fins of long-finned tankmates.
San Diego water
Tolerates San Diego's hard, alkaline tap water (pH roughly 7.6-8.6) with slow acclimation and a conditioner that handles chloramine. Learn the numbers in our San Diego tap water guide.
Before you buy
Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.
Find it at Pet Zone
Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.
4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm
Aquascaping, planted tanks
4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm
Monster fish, koi