American Flagfish
Can graze algae but may nip plants or slow tankmates; plan pairs carefully.
Planning your aquarium
The library starting point is 20+ US gallons. Plan for the approximate 2.5-inch adult size and the species' normal activity, not just its current shop size.
The minimum group count is not a compatibility recommendation; assess temperament, sex, territory, and tankmates.
Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.
Tank setup and behavior
- Break up sightlines with plants or hardscape to create distinct territories.
- Choose plants carefully; this species may graze on tender foliage.
Can graze algae but may nip plants or slow tankmates; plan pairs carefully.
Food and feeding
Food options: Algae wafers, Quality flakes, Blanched vegetables.
Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.
Compatibility
The current rule-based checker does not list a dedicated pairing warning for this species. That does not mean every pairing is safe; review temperament, adult size, diet, habitat and water requirements.