Northern Lights
A variant of Discosoma (Red Mushroom) (Discosoma sp.)

Photo: Kevmin · CC BY-SA 3.0
Representative Discosoma (Red Mushroom) image. A confirmed image of this exact morph isn't available yet.
A reddish-purple mushroom scattered with golden spots that lean towards green. The raised gold bumps stand out against the dark disc.
Other Mushroom Corals variants
Red / CrimsonBlueSupermanSuperman DiscosomaJawbreaker MushroomEclectus JawbreakerCandy Crush JawbreakerDeadpool JawbreakerLava LampKryptonite JawbreakerCritical MassPurple MonsterRed DevilNeglecta MushroomLeopard MushroomIronmanBlue Spotted MushroomKing's CrownStarburst MushroomStriped MushroomSpotted MushroomMetallic Aqua Mushroom