Join Date: Nov 2011
Location: South-central Washington State, USA
You could fit a lot of different types of cichlids in there without harming any of the fish or plants, but for now, I'd let the occupants settle and add to their numbers.
The tetras, rasbora, and danio are schoolers. The black and white skirt tetras are the same fish, so they're fine in their currant number. The rasbora and the danio both should be kept in groups of no less than 6, preferably 8 or 10. The loach would be happier in a group, but they are fine solitary. The gourami can get along well without others of its own kind. I would up the numbers of the rasbora and danio to at least 6, or give them away and focus on having a big school of skirt tetras (which, in numbers of 20-30, is totally awesome-looking)
The plecos... Sailfin plecos poop a lot and can rasp holes in plants. Really, the only good plecos for planted tanks are rubberlip, bristlenose, and pitbull. All three are great algae eaters to boot. I would give the sailfins to the LFS or someone who can house them properly (they get big: 18 inches is the norm).
"One day...one day, this path will lead us to the White City, and the tower guard will take up the call: the Lords of Gondor have returned!"
–Boromir, The Lord Of The Rings