How long do Red-tailed Sharks live?
Red-tailed Sharks live about 5-8 years with good care. Stable water and the right social setup (alone) support a long life.
What do Red-tailed Sharks eat?
They are omnivores taking pellets, flake, algae wafers, and frozen/live foods. Overfeeding is the main diet error; they also graze algae. Feed moderate portions once or twice daily.
Tank size and water parameters
A 40-gallon (150 L) tank suits a single fish. Target 72-79°F (22-26°C), pH 6.5-7.5, moderate hardness, zero ammonia and nitrite, nitrate under 20-30 ppm. Keep only one per tank with caves and robust, non-similar tank mates.
Common mistakes with Red-tailed Sharks
Key errors: two in one tank (they fight viciously); similar-looking tank mates like rainbow sharks they attack; too small a tank; and timid tank mates they bully.
Beginner mistakes to avoid
- Two red-tailed sharks — they fight; keep only one per tank.
- Rainbow sharks or look-alikes — they attack similar species.
- Too small a tank — adults need 40+ gallons.
- Timid tank mates — they bully peaceful fish.