I am new to more advanced lighting and was thinking of grabbing 3 Viparspectra 165w LEDs for my new 210 gallon tank. I was wondering if 3 seemed to be enough, as it should cover the full tank without any overlap and i have mostly soft corals but am looking to begin a mixed reef. I also have two LED strips currently that i can utilize alongside them. My only other question (which might be insanely dumb, bare with me) is whether or not i can lay them directly over a glass top, and just use them on a lower setting as i know they are typically higher up. Would they be too strong for the glass to handle? I'm only used to weaker lights as of currently. Thanks in advance for your help and advice!