Around five years ago I stopped keeping fish, at the time I had a 75g planted aquarium with an assortment of community fish. Recently I've decided to get back into the hobby and in preparation for that I ordered a UNS 60U which is a 20 gallon aquarium. I need to confirm what my office temperature range is, but at the moment I'm considering running the aquarium without a heater. I did a little research and found that Rainbow shiners, Celestial Pearl Danios, and Cherry shrimp may be good candidates for this aquarium. Another suggestion is the Hillstream Loach, but I am likely to keep the algae growth on the front and back to a minimum since I would like to keep a nice aquascape with a light background.
Are there any other suggestions for fish?