Reefrocker Live,
I do have the 1-10v settings set at 3-8v.
I have 2 x 6100 streams in my tank. In my previous tan, which was similar size, I was using the tunze multi controller and had it set for the interval 2. Not sure what that would correspond to on the profilux controller. I will try and find the tunze manual online.
I do have the nocturnal decrease of current enabled. It kicks in one hour after the lights go off. I have a pump in each group. Both groups are set for short right angled waves at 6 seconds.