Okay so I recently just started my first saltwater FOWLR and didnt do to much research before i got a 12 gallon tank. So since then i have done so much reading and researching and know bigger is better or (easier). So one day i want to go for a 75 gallon or greater tank but im so scared with all the equipment that i see that goes into these tanks to make them run and the money that goes into them. Doing the refugium and sump and all the plumbing and all that other great stuff that goes under that tank scares the crap out of me because when i see videos there always seems to be so much stuff. So my big question is one day when i get this up and going i really want to just stick with a FOWLR and just get some nice artificial corals to brighten it up but with a tank this big can i just run a hang on the back filtration system or a couple of them along with a hang on the back protein skimmer since i wont be having tons of corals. Please let me know and give me some ideas of what could work, making a simple easy and effective system to run the tank on. Remember im new so help me out. At least im not one of those people that bought my tank and through a bunch of corals and crap like that with out know what they are doing. I really want to do it right when i finally do it one day meanwhile im messing around and having fun with my 12g as of right now. Thanks alot guys