Hello Folks, So, I'm starting a little tank build here. This will probably be a long term project, as I'm getting back into the hobby after a few years out. Luckily, I still have some equipment, so I'm not starting from scratch. (ie: I have a skimmer, a heater, a stand, etc) The idea behind the tank, is to create a reef that is both environmentally friendly and economical to run. I have an old 40 gallon breeder that I've had for well over 15 years, that will be the main tank. I'll be installing a 20 gallon long sump as well. Today I got around to cleaning out the old tank, and I'm now wondering if I should paint the back black, or wait till I'm done drilling it for the overflow. Thoughts?