Yeah sorry, I meant a nice centerpiece fish. I have my tank setup (decor wise) pretty much the way I want it minus some real plants that I havn't had the chance to buy yet.
With all your current fish you should have 8 inches of space left. A good fish might be a betta since it is too small to eat the other fish. A gouramis would also be a nice centerpeace fish too but it might eat the shrimp. Sorry i've had this problem before too and ended just getting what's cool at the lsf. I wouldn't recommend that since it might get too large for your tank. You might also want to get a Bristlenose catfish, oto, corydoras, or siamese algae eater for an additional tank cleaner. Don't get a plecostomus, it will get way too big. Good Luck!!!
A betta is an iffy thing with this group. Some danios become fin-nippers. Normally this is minimized with an appropriate-sized group (the six weg's got is perfect), but it could be a problem. Bettas also have a tendency to go after shrimp when they've molted. Just because they can't swallow it whole doesn't mean they can't pull it apart.
A colorful gourami is a good idea, though the same shrimp issue exists, as you said. Maybe a dwarf gourami would be less likely to kill the shrimp.
It's too bad that danios eat at the surface, or the African Butterfly Fish would be a beautiful addition, but they tend to eat smaller fish that feed at the surface.
I have thought about some dwarf Gourami's and so far they are #1 on my list, I guess if they end up killing some of my shrimp I should just add some more hiding spaces for the shrimp and see how they do. I know that oto's like to be kept in a school but would they be ok with on a pair of them? I was thinking of getting one male dwarf gourami and one female and two oto's, that would put me over about 2" of fish if I did the calculations right.
A solid plan. (Warning: You may not ever see your shrimp again. see my upcoming post in freshwater inverts for an explanation)
Be sure you get matching gouramis. I once got by accident a female fire gouramis and a male dwarf.