Ok I have been keeping Freshwater for about 10 years now and never ever had a Saltwater setup yet. I am definately thinking to set up one up now. I am picking up a 75 gallon for $75 soon. Now my questions for you guys are, On a budget of about $500 what should I do for equipment. I have a bunch of Eheim 2217's laying around should I use those for filtration or should I just go all out and buy a sump/refugium with a hang on back overflow. I mean I could run a nice protein skimmer on the sump it self but I can't spend a fortune. Now for lighting I am going to be running a 48" Coralife Lunar Aqua light strip with two 65 watt 10,000k Coralife bulbs. If you guys have any other ideas for bulbs for the fixture I am using please tell me a brand and such. I think for corals I am going to get pulsing Xenia, mushroom coral and Cabbage leather coral. Shoud I invest in a RO system if I have corals so get rid of all sources of chlorine and such? Now for fish I was thinking maybe 3 Centropyge loriculus, a pair of Amphiprion ocellaris and finally one Paracanthurus hepatus. I love tangs and if anyone know of any tangs that would do well in a 4 foot aquarium please let me know. I know most tangs require at least a 6 foot tank. Any help would be much appreaciated. So what do guys think? should I go for it?