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Red Melon Discus

Symphysodon aequifasciatus var.

Also known as: Red Melon Discus, Melon Discus

Origin: Captive bred (originally Southeast Asian hatcheries)

R

Water Parameters

Temperature2831 °C
15 °C35 °C
pH5.57
49
GH (Hardness)18 °dGH
0 °dGH30 °dGH
KH (Alkalinity)04 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
20 cm
Min Tank
250 L
Lifespan
10-15
Swimming Level
middle
Schooling
Yes (5–10+)
Diet
carnivore
Temperament
peaceful, hierarchical within group

About

The Red Melon Discus is one of the best-known solid-red domestic strains, celebrated for its smooth, deep-red body pigmentation devoid of any significant pattern. The name refers to the resemblance of its flesh-red colour to the interior of a ripe watermelon — a rich, saturated, appetising hue.

Top-quality Red Melons are further characterised by an exceptionally rounded, deep body profile — the hallmark of selective breeding for show quality. The red coloration is carotenoid-dependent; without a diet rich in astaxanthin and carotenoids, the colour fades to a disappointing orange-brown.

This strain is an excellent companion to blue and turquoise strains in a mixed discus display, providing warm-toned contrast. It is also a popular choice for breeders seeking a reliable, commercially successful solid-red line.

Care Guide

Water: 28-31°C, pH 5.5-7.0, soft (1-8 dGH), KH 0-4; low nitrates essential for colour retention. Tank: Minimum 250 L, dark substrate and background, moderate warm lighting to enhance red tones. Feeding: Astaxanthin and carotenoid-rich discus pellets, beefheart, bloodworm; avoid pale foods that dilute colour. Breeding: Prolific; pairs readily on vertical surfaces; both parents guard eggs and tend fry. Compatibility: Peaceful with other discus, cardinal tetras, rummynose tetras, and small Corydoras.

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