Just added 8 Pseudomogil Gertrudae (Spotted Blue-Eye Rainbow fish) to my 20 gal
tall (thanks to Severum Mama and HN1). They fill out the top level nicely. The video doesn't do them justice. I also added two more Panda Corys to my current group of 5. Also in the tank are 9 Celestial Pearl Danio and 2 Horned Zebra Nerite snails.