There is a very good article in a past FAMA that discusses brains. Some things real quick are:
1. They don't need intense light but don't they don't take to immediate swings in light intensity.
2. They need to eat at least twice a week and with meaty foods or something like cyclopeeze.
3. They are slow eaters so give them time before powering up and turning on heads...like an hour or more.
4. While they are more at home on a sandy bottom they can do just as well on rock.
5. Low to medium flow and nothing stronger.
Feeding is the key and why i am up at 2:15 AM...I just got done feeding my brains
I use a cut in half liter soda bottle method because if i didn't my skunks would never, and I mean NEVER, leave them in peace to eat. I feed finely chopped mysis and Cyclopeeze and man do their feeding polyps come out and extend...plus they really puff up. It's a totally cool experience to see how they react and change.
Again, you really need to target feed twice a week at a minimum and a cut in half soda liter soda bottle is just the trick!