Hi I just joined as I've decided to get a bimac. I have a 37 gallon tank with a CPR bakpak and about 40 lbs of live rock. The tank has a glass top and one additional powerhead. I plan on getting a bimac from either fishsupply.com or octopets.com. Is one better than the other? Or does the bimacs from fishsupply.com come from octopets? Also, does anyone have any suggestions or critiques on my set-up? Thanks.