Hey I have a new 40 gallon tropical tank. I have in it 5 neons and 2 livebearers. There all very nice fish but dont realy amaze the eye if you get me. Im looking to get one or two realy realy buitful fish To realy add to its llook. Can you please advise me on what realy nice fish will go well with the fish I already have. And IS a fighter fish okay with the fish I have now?