Blue/Purple-rimmed Acan
A variant of Acan coral (Micromussa lordhowensis)

Representative Acan coralphoto — a dedicated image of this exact morph isn't available yet.
Acans displaying rare blue or purple fluorescent rim pigments around the polyp edges, a much less common pigment than red/green. Prized as collector pieces.
Keeper tips for this variant
Add a touch more actinic/blue spectrum to pop the rim fluorescence, but keep overall intensity moderate — the blue pigment is delicate and bleaches before the reds do.
Other SPS Corals variants
Rainbow AcanMaster / Mummy-Eye AcanBowerbankiMaster / Mastergrade AcanBullseye AcanLordhowensis 'Lord' AcanHellfire / Lava AcanRainbow Acan (Rainbow Lord)Master Acan (Master Lord)Acan Lord (classic red/green)Bubblegum AcanFire & Ice AcanMicromussa amakusensis 'Rainbow' (Mini/Micro Acan)Mystery Machine Aussie LordTokyo TartIron Man AcanF2M Holy Grail MicromussaRainbow RoadTSA Freak Show MicromussaTSA Death Rattle MicromussaTSA Sugar Rush AcanTSA Black Hole Sun AcanTSA Candy Floss AcanFire and Ice AcanRainbow Acan LordUltra Red Aussie LordMicromussa amakusensis (Micro Lord) Rainbow