as for your lights under your canopy i have 2 (4 blub 54w) setups undermine no heat issues i plan on pullling my canopy this weekend to do some maintance and rock work (hating the flow restrictions) I can take some pics of mine for you. I basically used some L-brackets to hold the lights up in place, some zip ties to hold the fixtures to the brackets. and the L-bracketed some ac powered fans under the canopy to help remove heat. Works great fans are a little loud but work awesome
90g mixed reef, 12g nano, 3 dogs, 3 cats, 2 ferrets.
Driving the wife crazy.......PRICELESS.