Flag fish

Care requirements

• Minimum tank 24 × 12 in (60 × 30 cm) or larger.
• Adult size 2.2 in (55 mm), excluding the tail
• Temperature 75–79°F (24–26°C)
• pH 6.5–7.5
• GH 4–12 dGH
• Ammonia and nitrite 0 ppm

Housing & compatibility

Provide planting, open space, and refuge areas. Breeding males can defend territories and individuals may nip long fins; choose tankmates carefully.

Diet

Use a balanced food with suitable vegetable ingredients and supplement with appropriate small animal-based foods. Aquarium algae alone is not a complete feeding plan.

Hikari Micro Pellets is a prepared option if the pellet size fits. Offer Hikari Bio-Pure Frozen Daphnia for variety.

Reference photo. “Jordanella floridae” from the U.S. Geological Survey (photographer unknown). U.S. public domain.