Any acan experts?

[sobe]

I have recently got some Acans as well, I noticed I first put it on a rock mid level in the tank and each head seem to have constricted and didn't look happy. I moved it to the sandbed and it's all puffed up now and colors are back up. So yea I think further away from direct light. My tank is about 24" deep. Right now it's growing into a dome shape. I will put a flat LR where it can grow and spread