I want to stock my 20 gallon with some of the most colorfulness fish out there, but that is easy to find online or in a lfs. Before I was going to do a pair of ram cichlids but now I kinda want to change up a bit. I may keep just one Ram, I dont know yet.. But what can I stock this tank with...Any Rainbows or Gouramis or different types of tetras behinds neon or cardinal...Those are kinda plain to me....