Well, I've been perusing this site and it's full of wonderful information. Like many posts, this is my first and it's going to be full of questions. My friend works at Petco, and says he'll help me out with my purchase, so I made a list of things. [*]---55 Gallon Tank [*]---20 gallon feeder tank. He mentioned something about me having to get this tank tapped in order to be used as a sump, are there any that come pre-tapped? [*]---Arganite. I asked him about live rock, and they don't carry it. He said arganite does the same thing. I wasn't sure about this, and will track down live rock if necesary [*]---Hydrometer [*]---Protein Skimmer [*]---Filter System [*]---Salt Water Test Kit [*]---Hood [*]---Lighting [*]---Places to hide. I'm sure I forgot stuff, so please let me know As far as the filter system and protein skimmer go, can anyone recommend some? Also, are there any good on-line stores specializing in this stuff? I'm sure I'll have more questions later, but thanks for now!