So the top is my 40B tank and at the moment is houses a betta and neon tetras and tomorrow it'll house 6 harlequin rasboras, 6 glolight tetras, and 6 panda garra loaches... plus a million pond snails. The bottom is my 20 gallon and at the moment it just has pond snails but it'll house various types of guppies and 6 copies. I'm still waiting on some more decor for the 20 gallon but all plants in both tanks are live. I'm pretty happy with the way they turned out so far.
I have a back up 10 gallon for my betta if he decides to get too territorial but he's been with my tetras pretty much ever since I got him