I just started my 72 gal tank 3 weeks ago... currently i have a sump with the remora skimmer, a heater. also I have 2 powerhead...i don't have too much Live rock only about 20lb. and 3 inch of LS. My question is, do i need a HOB Power filter?
i would certainly suggest to have an additional hob filter as the ammount of live rock in not of a high enough qty to provide the filtration for you require for the tank...