So after having FW my whole life, i switched over to SW a year ago thanks to the encouragement from my 10 yr old son. I stayed with a 40gal, then upgraded to my 75 gal. Now...i am a proud owner of a 180 gal long! Go big, or go home right?! I know i have ALLOT to learn yet, so here are a few questions to start. Question #1- i have allot of live rock, and a pretty good sand base along with a cleanup crew, some fish, and some corals. The only filter i have in use is a Marineland HOB for a 75 gal. Im currently making an in-tank protien skimmer as well, and i have a couple power heads running. I think i already know the answer, but doesn't hurt to ask some pros. .. will the combination of the skimmer and HOB filter be enough to do the job on my 180 gal? I do have a wet/dry sump with an over flow box i can add, also i still have my 75gal, 40 gal and a 20 gal that i could use as a refugium/sump. . #2- lighting? As i mentioned, i have some corals and plan on expanding my collection. I currently have a 48" Ecoexotic led with the ramp timer pro. I also have a 48" T8 with actinics in it. What are some recommendations for lighting this tank? Metal halide? Thanks in advance for your help!