Im somewhat new to the hobby and i have a couple questions. I have a Solana 34g with Ecoxotic panorama pro modules over head. How do i know if my lighting is high enough (whites about 50% and blue is 25%) with out a par meter. Or if my corals are in the right place. They seem to be doing well with the lights and where they are now, but i have this brown algae type stuff that keeps re-appearing its gotten better over time and i was assuming it was just because my tank is only about 2 months old, but its still here and im not sure what the problem is. Ive read that people with the same problems have been advised to turn their lights up or change the bulbs. My parameters are "perfect" . So not sure what else the problem could be. Im starting to get some green algae on the rocks (i used dry rock when setting up the tank) and even some purple which is normal. Here is a couple shots of my tank


















