Brain Coral

Faviidae from the Indo-West Pacific and Read Sea. Deepest thanks to all who have brought me up to 54% of my fundraising goal, both at the donation site, and by paper method.

Apparently you can buy these and keep them in an aquarium. But at your peril. I suspect they wouldn't like a simulated environment, like most other living creatures don't. It's not a matter of Do they have consciousness or Do they have emotions or Can they feel pain. They are brains. 

 Furthermore: 

If placed high in the aquarium, be sure to secure its position, as damaged tissue from falls frequently leads to loss of this coral. Care should also be taken as to its position in relation to other corals, as this species can send out long sweeper tentacles during the evening. 

Not to be messed with.