I was getting tired of the excessive light spillage from my rimless tank (waterbox marine x 60.2) and the resultant blue cast over the whole room. Shades around the lights helped a tiny bit but didn't solve the problem, so I built a canopy to contain the light. The difference is night and day (well, blue and no blue). I made it from 1/4" PVC sheets from home depot, cut to size on a table saw, and glued together with clear PVC glue. Corners are reinforced with aluminum angle bar, which is also used to support the lid, and the canopy itself on the rim of the display tank. I love the look of a rimless tank, but this now looks way cleaner imo. My eyes are naturally drawn to the contents of the aquarium instead of the lights and water surface. Happy to share the measurements/design/construction with any other 60.2 owners.
Before and after lighting in the room is the same (including raw photo temp) - the only difference is the canopy.
Before:
After:
Before and after lighting in the room is the same (including raw photo temp) - the only difference is the canopy.
Before:
After: