Natural variantUncommon in the tradeIntermediate to keep

Master / Mastergrade Acan

A variant of Acan coral (Micromussa lordhowensis)

Representative Acan coralphoto — a dedicated image of this exact morph isn't available yet.

Premium-grade colonies with exceptionally bold, high-contrast color rings and bullseye centers. A hobby grading label rather than a distinct strain, applied to the most vivid wild/aquacultured pieces.

Keeper tips for this variant

Maintain rock-steady alkalinity (7-9 dKH) and low nitrate — these high-color pieces show STN/tissue recession fastest when parameters swing, so stability matters more than peak lighting.

This page covers the Master / Mastergrade Acan variant. For full husbandry, water params, diet and health —General care: Acan coral →

Other SPS Corals variants

Rainbow Acan Master / Mummy-Eye Acan Bowerbanki Bullseye Acan Lordhowensis 'Lord' Acan Hellfire / Lava Acan Blue/Purple-rimmed Acan Rainbow Acan (Rainbow Lord)Master Acan (Master Lord)Acan Lord (classic red/green)Bubblegum Acan Fire & Ice Acan Micromussa amakusensis 'Rainbow' (Mini/Micro Acan)Mystery Machine Aussie Lord Tokyo Tart Iron Man Acan F2M Holy Grail Micromussa Rainbow Road TSA Freak Show Micromussa TSA Death Rattle Micromussa TSA Sugar Rush Acan TSA Black Hole Sun Acan TSA Candy Floss Acan Fire and Ice Acan Rainbow Acan Lord Ultra Red Aussie Lord Micromussa amakusensis (Micro Lord) Rainbow