Common Name: Western Red Morph Coral
Species Name: Discosoma sp.
Growth Pattern: Smooth, dome-shaped solitary polyps with slow encrusting spread
Polyp Size: 20–50 mm in diameter
Color Variants: Ruby red, blood red, orange-red; iridescent highlights at growth margins
Texture: Smooth, slightly undulated with faint radial striations
Lighting Requirements: Low light preferred; PAR range 30–80
Water Flow: Low to moderate
Growth Rate: Slow to moderate; rapid episodic expansion during reproductive phases
Reproduction: Asexual fission and pedal laceration; burst growth after dormancy
Care Level: Easy
Placement: Lower tank zones, shaded rock surfaces, reef bases
Origin: Western Australian reefs
The Western Red Discosoma Corallimorph (Discosoma sp.) is a vibrant, soft-bodied coral relative native to Western Australian reef systems, where it naturally populates shaded ledges, rubble zones, and reef crevices. Known for its deep, saturated colour and smooth form, it’s a visually powerful yet low-maintenance addition to the Living Ecosystem Aquarium.
Each polyp measures approximately 20–50 mm in diameter, forming a gently domed disc with softly undulating edges and subtle radial lines. Its colouration ranges from ruby red and blood red to orange-red, with some individuals displaying a translucent sheen or glowing outer margin under actinic lighting. The richness of its red tones, especially at the polyp fringe, creates a warm, grounded presence within the reef display.
The Western Red Discosoma thrives in low light and gentle water flow, making it ideally suited for lower tank zones, shaded rock surfaces, or the base of Living Blocks. Its ability to gradually encrust and soften reef structures makes it highly effective for anchoring reef aesthetics and creating a lush substrate layer.
Morphs
Corallimorphs (Order Corallimorpharia) are soft-bodied, anemone-like and coral-like marine invertebrates known for their hardiness and diverse colour forms, making them highly popular in reef aquariums.
Reproduction
This species reproduces asexually through fission and pedal laceration. A single polyp may remain static for months, only to suddenly undergo a phase of episodic colony growth — rapidly dividing and spreading across rockwork in a matter of weeks. This burst-like expansion adds a living dynamic to the reef environment and creates beautiful mats of soft, red polyps in its path.
The Western Red Discosoma is not just striking — it’s a resilient, slow-growing coral with behaviour that reflects the rhythms of natural reef systems, making it an ideal fit for sustainable marine aquarium designs.
