Well, after much research and going back and forth... I decided to do freshwater with this tank. Mainly because it's much easier and more tolerant of less than optimal care. A better choice for my office. And it was something different than I'm used to. Today I picked up my first fish. Two wag-tail mollys, a female beta, and some long bottom feeder fish of which i can't remember the name. But he's cool. I'm going to get more live plants. I saw some nice bright green grass and some fern looking stuff that I want to get.