For water movement and filtration I have a little clear plastic filter that came on one of those itty bitty 1/2 jobs. I clean the filter and do a water change every 2 weeks and put a little bag of carbon in it about once a month. I have a 14 watt pc on it for lighting. That's all. The orange shroom is a flouresing one that Bang sent me and it's been putting out a couple babies.
I have a candy cane frag, hairy shroom, garden variety blue/purple shrooms and anthelia. There is one fish, a high fin goby that will go in the big tank when it's up and running again and a small scarlet cleaner....about 4 lbs live rock and 1 inch sand bed. Two astrea snails that make it where I never have to clean the glass and one nassarius, 1 hermit crab and quite a few bristle worms and pods. So far, it's been easy to care for but, I started it with things from the big tank so it was an easy set up. Check out jeo's thread/ It's the same filter, I took out the floss stuff and that's where I put my little bag of carbon. I have the 7 watt bulb too and I may add it to the 14 already on the 2.5 but, don't want a heat problem since I cut a piec of glass and lay my light on it to keep the little reef at the right temp.