I'd like some input from more experienced folks. I haven't built my canopy yet, and I need to, but I can't seem to settle on a solid plan. I'd decided to use Example #1 at http://www.reefaquarium.com/2013/building-aquarium-canopy/ because it's simple and seems easy enough for my amateur woodworking skills. Except for the one big problem of being able to access my lights. I have two Ecotech Radions which will orient longways across the middle on some rails that I bought, with a retrofitted T5 in front and in back. Once the whole thing is put together, I'll never be able to get the Radions out, and changing that back bulb will be a pain. Because I failed to listen to my wiser elders, I went ahead and built my stand 36" tall (I'll do better next time- 30" tall stand MAX), so with a 2' tall tank, that puts the tank lid right at forehead level for me. The canopy will be pretty high up there, and reaching that far back would be a heckuva challenge even with a step ladder. Then I thought maybe I'll just cut a hole in the side, so I can slide the radions out that way, but changing a T5 bulb from the short end of the tank also seems kind of stupid. So...what if I mounted the lights on a thinner piece of plywood, and mounted that plywood on a set of rails so that all the lighting fixtures can slide right out the front as one unit? I'd be able to slide the radions off the horizontal rails as needed, and change the T5s easier. But what kind of rails can I use that won't rust? And if I put the ballasts/power supply boxes for the radions on top of the canopy towards the back, will the weight be enough to counterbalance the lighting rack when it's pulled out? Or is this all harebrained and I need to come up with a completely different design of canopy? I've gone through the stand build threads on here which included a lot of canopy plans, too, and while they are all really cool, many are impractical for my needs, or beyond my ability to build. What are your thoughts?