Electric Blue Jack Dempsey

Overview

The Electric Blue Jack Dempsey (Rocio octofasciata) is a stunning electric-blue coloured cichlid with a calm temperament compared to other Central American cichlids. Its iridescent blue speckling on a dark body is truly eye-catching.

Water Parameters

• Temperature: 22–28°C (72–82°F)
• pH: 6.0–7.5
• Hardness: 5–12 dGH

Tank Setup

• Minimum tank size: 200 litres for one; 300+ litres for a pair
• Substrate: Sand or fine gravel
• Decor: Rocks, caves, driftwood; they appreciate hiding spots

Diet

• Base: Quality cichlid pellets
• Treats: Frozen bloodworms, brine shrimp, earthworms

Temperament & Tank Mates

• Temperament: Semi-aggressive; territorial when breeding
• Best companions: Medium-large robust fish; other Central American cichlids
• Avoid: Small fish, slow long-finned fish

Breeding

• Difficulty: Easy; cave spawner
• Process: Pair bonds form; lay eggs in caves or on flat surfaces; both parents guard

Common Issues

• Hardier than many cichlids; tolerates a range of conditions
• Can grow to 15–20 cm
• Lifespan: 10–15 years