How long do Jack Dempseys live?
Jack Dempseys live about 8-15 years with good care. Stable, warm, clean water and appropriate space support a long life.
What do Jack Dempseys eat?
They are omnivorous carnivores needing cichlid pellets, frozen/live foods, and some vegetable matter. Overfeeding is the main diet error; feed measured portions once or twice daily to avoid bloating.
Tank size and water parameters
One needs at least 55 gallons (210 L), more for a pair. Target 72-80°F (22-27°C), pH 6.0-7.0, moderate hardness, zero ammonia and nitrite, nitrate under 20-40 ppm. Provide rock caves and a sandy substrate; expect digging and rearrangement.
Common mistakes with Jack Dempseys
Key errors: keeping them with small or peaceful fish they attack; too small a tank; weak filtration given their waste; and overlooking their digging, which uproots plants and buries decor.
Beginner mistakes to avoid
- Tank mates they attack — keep with robust cichlids or alone, never small peaceful fish.
- Too small a tank — adults need 55+ gallons.
- Weak filtration — they are messy waste producers.
- Forgetting their digging — secure decor and accept rearranged substrate.