So I'm still setting up my 40br, and my lights just came in the mail today. I got a Mars aqua 165 watt box led. It came with some cables, so I decided to hang it from the ceiling. I didn't have a stud anywhere near the center of the tank, so I got a drywall anchor and a metal hook, installed them into my ceiling, and gave it a nice tug to make sure it was secure. I hung up my lights, but then I noticed my lights weren't perfectly parallel with tank, they were off at a 90 degree angle. I started to fiddle with the cables, then the anchor pulled out and the light went into the tank. I pulled the light out, took off the external housing, and dried it off the best I could. I'm going to give it a few days to air dry before I try turning it on to see if it still works. Lesson learned, no drywall anchors in the ceiling. So my question is, how would you mount a light on a tank that doesn't have a lid or canopy?