Jack Dempsey Cichlid

Rocio octofasciata

Jack Dempsey Cichlid (Rocio octofasciata) — Intermediate care, Aggressive, under Cichlid. Minimum tank in the app: 79 US gal min; aim for 72–82°F and pH 6–8. Details below match the app.

Jack Dempsey Cichlid (Rocio octofasciata) in a planted freshwater aquarium
Care levelIntermediate
TemperamentAggressive
Min tank size79 US gal min
pH range6–8
Temperature72–82°F
Max size9.8 in (25.0 cm)
Captive lifespan8–12 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Central America

  • Central America & Mexico

Regional colours match the stocking calculator’s origin map.

Jack Dempsey Cichlid Tank Setup

Plan for at least 79 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 72–82°F and pH 6–8 without daily drama. These fish use the Mid/Bottom zone most, so put wood, plants, or open water there accordingly.

What Do Jack Dempsey Cichlids Eat?

We record diet as Omnivore (varies). 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.

Jack Dempsey Cichlid Tank Mates

Temperament in the data: Aggressive. Flagged as a fin nipper, so long flowing fins and slow targets are a poor match. Treat small tank mates as potential snacks once the fish grows. Highly aggressive; best kept with similarly-sized robust cichlids. Predatory; will eat small fish. Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.

Are Jack Dempsey Cichlids Good for Beginners?

We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. If this would be your very first tank, start with something more forgiving and come back to this one.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.