Green brain problems

[cwickham]

Hey
so my green brain was totally fine yesterday, really green and opened up soo wide that it looked thin... so good. but tonight i got home and the lights were off, and the brain was shriveled soooo tiny... and no tenticles out which is not normal, they are usually always out when its dark. i touched it cause usually that makes the tenticles come out and it was pretty rock hard. Its still really green and all my water parameters test normal... all fish and other corals are normal.

any one ever experience this? is it normal behavior.. i have had it for about a month and it had been doing great..

any input would be great

thanks
craig wickham