The photos are of the WYSIWYG coral on a standard 3/4" Alternative Reef frag disk.

If you are looking to buy Blastomussa corals online that actually stand out, the LC Sub-Zero Blastomussa Merletti is a must-have.
 
While most Merletti come in standard reds and greens, the Sub-Zero morph features a rare, bright teal skirt usually only found in high-end Blastomussa wellsi. The "Sub-Zero" glows under actinic lighting, showcasing an icy teal rim that contrasts against deep purple ridges and a glowing neon green center. As a small-polyp Merletti variety, this coral develops a tight, branching colonial structure that adds intricate detail to your sandbed or lower rockwork.
 
The teal edge on these is the real deal—a "cold" neon aesthetic that is far more vibrant than common color morphs. These corals are perfect for those lower-light "dead zones" of your reef tank, as they thrive in an environment with low-to-moderate flow to ensure full polyp extension. Because Blastomussa Merlettis are famously resilient and beginner-friendly, the Sub-Zero is the perfect choice for hobbyists who want a high-end look without high-maintenance stress. They aren’t picky eaters either; regular spot feeding with mysis shrimp or LPS pellets will significantly speed up their growth and keep their colors vivid.
 
Lighting: Best maintained under low to moderate light conditions with a strong blue spectrum.
Currently kept under Kessil A360X units. Mounting height 24" above water line. 12:00PM - 10:00PM at 100% blue intensity.

Water Flow: Prefers moderate, gentle flow to keep the polyps clean and free of detritus.

Feeding: While they can survive on light alone, targeted feeding of small coral pellets or powder will promote faster growth and health.

Placement: Provide adequate space from other corals, as they can be stinged easily. They also need room to grow.