Red Devil Angelfish (Pterophyllum scalare) The Red Devil Angelfish is a bold and eye-catching freshwater variety known for its intense red, orange, and fiery tones that seem to glow under aquarium lighting. With its tall, graceful fins and vibrant coloration, this angelfish instantly becomes the centerpiece of any aquarium. Selective breeding has enhanced both the depth of color and pattern consistency in this strain, giving it a rich, uniform appearance that stands out beautifully against plants and darker backgrounds. Elegant yet striking, the Red Devil Angelfish combines beauty with personality, making it a favorite among hobbyists. Care Guide Tank Size Minimum: 30 gallons Recommended: 40 gallons for groups Tall aquariums are ideal Water Parameters Temperature: 24–28°C (75–82°F) pH: 6.0–7.5 Soft to moderately hard water Requires stable, well-maintained conditions Temperament Semi-aggressive Generally peaceful but can become territorial, especially when pairing or breeding Best kept with calm, similarly sized fish Tank Mates Suitable: Larger tetras Corydoras catfish Gouramis Rainbowfish Avoid: Fin-nippers (e.g., tiger barbs) Very small fish (may be seen as food) Diet Omnivorous High-quality flakes or pellets as a staple Supplement with: Frozen or live foods (bloodworms, brine shrimp) Occasional vegetable-based foods Tank Setup Planted aquarium recommended Add driftwood and vertical décor Provide open swimming space Moderate lighting enhances coloration Behavior & Notes Can be kept singly, in pairs, or groups (monitor for dominance) May form breeding pairs and guard territory Color intensity improves with quality diet and low stress Max Size Body length: up to 6 inches Total height (with fins): up to 8 inches