Blue Diamond Angelfish (Pterophyllum scalare sp)

Blue Diamond Angelfish — Pterophyllum scalare sp.
Subtle shimmer, timeless elegance

The Blue Diamond Angelfish is a refined variation of the classic angelfish — prized for its soft metallic blue sheen that shifts under light like brushed steel with hints of aqua. Unlike striped or patterned angels, the Blue Diamond carries a cleaner, more uniform look, allowing the reflective scales to become the focal point. Under proper lighting, the body glows with icy blue highlights that contrast beautifully against dark backgrounds and wood-heavy aquascapes.

Originating from Amazonian backwater bloodlines, angelfish are vertical swimmers designed to glide through submerged roots and branches. The Blue Diamond keeps that same calm, hovering behavior — moving slowly and deliberately before pivoting and drifting forward. In groups they create a tall, elegant display that adds depth to any aquarium.

Growing to about 6 inches in body size with much taller finnage, they are peaceful but still true cichlids — capable of establishing gentle hierarchy while remaining community-friendly when properly housed.

Aquarium Setup

• Minimum Tank Size: 55 gallons (75+ gallons preferred for groups)

• Tank Height: Important — minimum 20 inches tall recommended

• Substrate: Sand or fine gravel

• Décor: Driftwood, plants, vertical structure

• Flow: Low to moderate

• Lighting: Moderate (enhances blue sheen)

Tank Mates

Best kept with calm, non-aggressive species:

• Tetras

• Corydoras

• Peaceful plecos

• Eartheaters

• Discus (similar water conditions)

Avoid fin-nippers and overly aggressive cichlids.

Water Parameters

• Temperature: 76–82°F (24–28°C)

• pH: 6.0–7.5

• Hardness: Soft to medium

• Filtration: Strong but gentle flow

• Water Quality: Stable, clean water preferred

Diet

Omnivorous:

• Quality flake or pellet

• Frozen foods (brine shrimp, bloodworms)

• Occasional vegetable-based foods