Flagtail Characin
Semaprochilodus taeniurus
Flagtail Characin (Semaprochilodus taeniurus) — Expert care, Peaceful, under Other. Minimum tank in the app: 92 US gal min; aim for 75–82°F and pH 6–7.5. Details below match the app.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
South America
- South America
Regional colours match the stocking calculator’s origin map.
Flagtail Characin Tank Setup
Plan for at least 92 US gal min of water—that is the minimum in our database for a workable setup, not a challenge to crowd fish. Aim to hold 75–82°F and pH 6–7.5 without daily drama. These fish use the Mid zone most, so put wood, plants, or open water there accordingly.
What Do Flagtail Characins Eat?
We record diet as Omnivore. Offer a few food types that match—dry, frozen, or gel—and swap now and then. One flake every day for a year is how dull color and gut trouble creep in.
Flagtail Characin Tank Mates
Temperament in the data: Peaceful. Grows large; needs very large tank and strong filtration Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.
Are Flagtail Characins Good for Beginners?
Not where we would send a brand-new keeper. Get a few wins under your belt with hardier fish first.
Building a community? Run the full list through the stocking calculator before you add anything else.
Similar fish to consider
Log tests and reminders in App-aquatic—free, same data you see here.