Electric Blue Jack Dempsey

The Electric Blue Jack Dempsey is an ornamental colour strain of Rocio octofasciata, admired for its luminous blue body and individual dark markings. It offers the character of a substantial cichlid in a distinctive colour form. Pattern and intensity vary between fish and develop with growth; juveniles do not always show their full adult appearance.

Aquarium & care

Allow for an adult around 15–20 cm (6–8 in), although growth varies. We recommend an established aquarium of at least 75 US gallons (285 L), with a footprint around 120 × 45 cm (4 ft × 18 in), for one adult. Provide larger quarters for companions. Keep water stable around 24–27°C (75–81°F), pH 6.5–8.0, with effective filtration and regular partial water changes. Sand, smooth shelters, wood, and subdued areas offer security without crowding the swimming space. Protect rooted plants from digging and monitor feeding closely while a new fish settles in.

Feeding

Use appropriately sized, high-quality cichlid pellets, supplemented with frozen brine shrimp, mysis, and chopped shrimp. Include some plant-containing prepared food for variety. Offer manageable portions and check that the fish gets its share when housed with faster eaters.

Temperament & tankmates

Electric Blue individuals are often less assertive than standard Jack Dempseys, but they can still defend territory and swallow small fish. Choose calm, similarly sized companions only in a spacious setup. Avoid aggressive competitors, provide escape routes, and reassess compatibility as the fish mature.

Ordering information

Select from the current options above. Listed measurements are approximate sale sizes, not adult sizes. Contact Las Vegas Exotic Fish to confirm availability and collection or shipping arrangements.