I keep a school of glass blood fins (really love the red in them), a school of neons which is a no go if you're keeping angels (too small at adult size and will be eaten), and a school of Pristellas. The pristellas are my favorite by far. It was originally between them and lemons but I went with pristellas. Like a previous poster said... lemons look drag in the store but at home and with a black background... beautiful.