On where to go to learn more about reef tanks. I've been reading others journals and whatnot but i'd like any suggestions on books, websites, etc. I've kept tropicals and now have a 55g brack tank setup that's been running for some time but really since day one i've always wanted to have a marine tank. I've been contemplating the idea of getting a smaller second tank but obviously i don't want to make things difficult since i'm inexperienced and a nano doesn't seem the way to go. Quite honestly, i'm pretty sure it would just be a matter of time before the inevitable upgrade. So with that being said, any literature you can recommend?