How to Identify Electric Blue Jack Dempsey

To identify Electric Blue Jack Dempsey (Rocio octofasciata 'Electric Blue'), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Intense, iridescent electric blue coloration covering most of the body, often with darker, almost black, irregular blotches or bars. The fins typically share the same blue iridescence with dark margins. The intensity of the blue can vary with mood, health, and lighting.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Vibrant electric blue iridescence, Robust, stocky body typical of cichlids, Pronounced forehead in mature males, Dark, irregular blotches or bars on the body

Dorsal fin

Long, spiny anterior portion transitioning to a soft-rayed posterior portion, often with a pointed tip extending beyond the caudal fin in mature males.

Tail fin

Rounded to truncate, often with iridescent blue flecks.

Pectoral fin

Fan-shaped, typically clear or slightly blue-tinged.

Distinctive fins

Pelvic fins are often elongated and pointed, matching the body coloration.

Identification Tips

1. 1

   Coloration

   The most defining feature is the intense, almost neon, electric blue iridescence across the entire body, distinguishing it immediately from the more subdued coloration of the wild type.

2. 2

   Size

   Electric Blue Jack Dempseys tend to be smaller than their wild counterparts, typically reaching 6-8 inches (15-20 cm) in captivity, whereas wild types can exceed 10 inches (25 cm).

3. 3

   Body Shape

   Possesses the classic robust, oval, and laterally compressed body shape characteristic of the Jack Dempsey cichlid.

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