Electric Blue Jack Dempsey

The Electric Blue Jack Dempsey – B grade (Rocio octofasciata) is a vibrant morph of the classic Jack Dempsey, a popular American Cichlid originating from the slow-moving freshwater rivers and lakes of Central America. The “B grade” label typically refers to individuals with less intense colouration or minor aesthetic variations compared to A-grade specimens, though they still retain the species’ striking electric blue hues. Known for their semi-aggressive behaviour and territorial instincts, these cichlids are suited to intermediate to advanced aquarists. Shop live aquarium fish online with confidence, with our livestock delivery guarantee. Features of an Electric Blue Jack Dempsey – B grade Metallic blue iridescent scales across body and fins Reaches up to 20 cm in length when fully mature Flattened, oval body shape with strong jawline Males may exhibit more intense colouring and extended finnage Territorial, especially during breeding Lifespan of 8–10 years under proper care The Best Aquarium Size for Electric Blue Jack Dempsey – B grade A single Electric Blue Jack Dempsey requires a minimum of 200 litres. A tank of 300–400 litres is preferable for pairs or if housing with other cichlids. A larger footprint helps reduce aggression and provides ample swimming space. After an Aquarium for your fish? Browse our Aquarium Tank Selection here Tank Mate Compatibility for Electric Blue Jack Dempsey – B grade Suitable tank mates must be similarly sized and robust. Compatible species include: Green Terror Firemouth Cichlid Silver Dollar Fish Common Pleco Avoid small, delicate, or slow-moving species, as they may be bullied or eaten. Diet for Electric Blue Jack Dempsey – B grade These omnivorous cichlids benefit from a protein-rich and varied diet: High-quality cichlid pellets or sticks Frozen or live foods: bloodworms, brine shrimp, krill Occasional treats of chopped earthworms or prawns Supplement with spirulina or vegetable flakes Feed once or twice daily, offering only what they can consume in 2–3 minutes. Browse our High Quality Fish Food online. Aquarium Setup for Electric Blue Jack Dempsey – B grade   Aquarium Filtration Use a high-capacity canister filter or strong hang-on-back system. Electric Blues produce significant waste, requiring efficient biological and mechanical filtration. Browse aquarium filters here.   Aquarium Plants Opt for hardy species like Anubias, Java Fern, or artificial plants. Cichlids may uproot soft-stemmed varieties. Interested in live plants for your aquariums? Browse live plants here   Aquarium Lighting Moderate lighting enhances their iridescent colour without stressing the fish. Avoid overly bright setups. Need aquarium lighting for your fish tank? Browse our  Aquarium Lighting.   Aquarium Heating Maintain water temperature between 25–28°C using a submersible heater with thermostat control. Looking for a suitable fish tank heater? Shop aquarium heaters here.   Aquarium Substrate Use smooth gravel or sand, allowing natural digging behaviour without causing injury. Shop a  variety of Aquarium Substrates here   Aquarium Decorations Incorporate rock caves, driftwood, and ceramic structures to provide cover, territory zones, and visual barriers to manage aggression. Check out our huge range of Aquarium Ornaments