
Red-Tailed Catfish (Phractocephalus hemiliopterus)
22–28°C · pH 6–7.5 · 1500L

A giant South American catfish for expert keepers only, requiring pond-scale space, massive filtration and lifelong planning.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Phractocephalus hemioliopterus
Yellowtail Redtail Catfish are a shoaling species — they need 6+ to feel safe and show their full colour.
A giant South American catfish for expert keepers only, requiring pond-scale space, massive filtration and lifelong planning.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Maintain these water conditions for optimal health and vibrant colors
Yellowtail Redtail Catfish is a yellow-tail colour form of Phractocephalus hemioliopterus, the giant South American redtail catfish. This is an expert-only fish: juveniles look manageable, but adults need pond-scale space, very strong filtration and a keeper who can plan for a fish measured in feet rather than inches.
Do not buy this fish for a standard community aquarium. It will outgrow normal tanks, produces heavy waste and may eat tank mates that fit in its mouth. Suitable homes are large custom predator systems or indoor ponds with industrial-level filtration and a long-term plan.
Available livestock is packed for a licensed live-animal courier service and covered by our Live Arrival Guarantee when conditions are suitable.

22–28°C · pH 6–7.5 · 1500L

26–30°C · pH 6–7.5 · 100L

23–29°C · pH 6–7.5 · 80L

26–30°C · pH 6–7.5 · 80L

18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 500L

20–27°C · pH 6–7 · 54L

23–27°C · pH 7.4–8.4 · 150L

24–28°C · pH 6.5–7.8 · 300L

20–24°C · pH 7–8 · 45L

24–28°C · pH 6.5–7.5 · 2000L

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

24–27°C · pH 7.5–8.8 · 150L

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 7.5–8.5 · 40L

24–28°C · pH 7.5–8.5 · 500L