A striking Central American cichlid known for its metallic blue, green, and gold spangles across a dark body. Bold and territorial, named after the famous boxer for its aggressive temperament.
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A striking Central American cichlid known for its metallic blue, green, and gold spangles across a dark body. Bold and territorial, named after the famous boxer for its aggressive temperament.
Dark brown to black base with shimmering blue, green, and gold iridescent spots. Rounded body with strong jaws. Fins are broad and may show red tinges. Males tend to be larger, more colorful, and develop elongated dorsal and anal fins, while females are smaller with less intense coloration.
8–10 years (up to 15 with optimal care)
Omnivorous; high-quality cichlid pellets as staple, supplemented with live/frozen foods (bloodworms, brine shrimp, krill), and occasional blanched vegetables (peas, spinach, zucchini).
The Jack Dempsey is a hardy, colorful, and intelligent cichlid that rewards aquarists with stunning visuals and fascinating behavior. However, its territorial nature means it is best suited to experienced keepers who can provide proper tank space, decor, and compatible companions.
Intermediate to Advanced; requires stable water quality, territorial space, and careful tankmate selection.
55 gallons for a single, 75+ gallons for pairs or community setups
6.5 to 7.5
8–15 dGH
72–86°F (22–30°C)
8–10 inches (20–25 cm)
Other robust medium to large cichlids (Firemouths, Convicts, Green Terrors), Plecos, Silver Dollars, Severums, and large catfish.
Small community fish (tetras, guppies, rasboras), delicate species, or slow movers like angelfish that may be harassed.
Rocio octofasciata
Cichlidae
Native to Central America: Mexico, Guatemala, Honduras, and Belize.
Territorial and aggressive during breeding; can coexist with other large cichlids if ample space and territories are provided.
Feed 1–2 times daily. Provide a varied omnivorous diet of pellets, frozen/live foods, and occasional plant matter to maintain vibrant colors and health.
Substrate spawner; pairs form bonds, lay eggs on flat rocks or inside caves, and guard their fry intensely.
Form monogamous pairs. Females lay 500–800 eggs on flat surfaces such as stones or cave walls. Parents guard and fan the eggs, which hatch in 3–5 days. Fry are moved to pits dug by parents and protected until they become free-swimming. Feed fry with infusoria, baby brine shrimp, or finely crushed flakes.
pH: 6.5–7.5, Temperature: 72–86°F (22–30°C), Hardness: 8–15 dGH, Nitrate: <30 ppm
Hole-in-the-Head disease (Hexamita), ich, fin rot, and bloating. Prevented with clean water, proper diet, and regular maintenance.
Territorial and semi-aggressive; best kept with similarly sized robust fish. Becomes more aggressive during breeding.
Territorial, bold, and semi-aggressive. Males may fight for dominance. Shows strong pair bonding and protective behavior when breeding.
The Jack Dempsey (Rocio octofasciata) is a popular Central American cichlid prized for its metallic spangling and bold presence. Their name reflects both their fighting spirit and striking looks. They originate from Mexico, Honduras, Guatemala, and Belize, living in slow-moving freshwater habitats. In aquariums, they thrive in warm, moderately hard water with plenty of rocks, caves, and territories. Though territorial, they are rewarding to keep, showing fascinating behaviors, vibrant coloration, and strong parental instincts during breeding. Albino and Electric Blue varieties are also selectively bred.