Lava Lamp
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 small, quick-spreading mushroom whose fat, rounded bumps float over a darker disc like the blobs in a lava lamp. It usually stays about an inch across and has been linked to *Discosoma dawydoffi*.
Other Mushroom Corals variants
Red / CrimsonBlueSupermanSuperman DiscosomaJawbreaker MushroomEclectus JawbreakerCandy Crush JawbreakerDeadpool JawbreakerKryptonite JawbreakerCritical MassNorthern LightsPurple MonsterRed DevilNeglecta MushroomLeopard MushroomIronmanBlue Spotted MushroomKing's CrownStarburst MushroomStriped MushroomSpotted MushroomMetallic Aqua Mushroom