Hello all, I'm new around here, and in need of some advise. I'm not completely new to fish keeping, I've kept freshwater for years and had a 30 gal reef tank about 10 years ago. I've been planning on starting a new reef tank when we move into our new house (end of the month) and picked up a steal on craigslist. I got a 150 gallon tank, stand, canopy, and a couple power filters for $100. I'm not planning on using the filters, but need to know where to start as far as building a sump/refugium. I have no idea how big of a sump tank I will need, how powerful a return pump, power heads ect. I'm also confused about the protein skimmer capacity. I plan to run it in the sump, but do I buy one based on sump size or tank size? Same thing with heater? Just so much more intense than when I ran my 30 gal with a powerfilter and small skimmer. Thanks for the advice and I'm looking forward to gaining and giving knowledge in the future.