i'm with MissMTS, personally i think that 6 zebra danios plus 3 otos (they prefer odd numbered groups for some reason) plus a dwarf gourami would be great! but IMO that would overstock your tank a bit. a better choice would probably be 3 guppies, 3 otos, and the
DG
as far as getting the danios out, what you can do is take a clean never-seen-soap plastic cup, and hold it completely horizontal over the water, take a little bit of food and hold it right at the top of the tank, and when the danios come up for the food and are close to the cup, push the cup down into the water. the water should force them into the cup. it takes a little practice but that's how i get my bettas out of the tank, it's WAY easier than using a net once you get the hang of it
anacharis is an easy plant as well, and also java moss