Love the story too! Happy that the teacher at least asked if anyone wanted them.
are great candidates for a species only tank in a 5-10G with lots of friends #'s by size of tank of course. There are a few types of fish which would be good tank mates and the Chili Rasbora, little things, aka Boraras Brigittae, would not bother them or compete for food.
There are a few other nano fish which would work too - some are the Chilis relatives. You can check in with me about them if you are ever getting to the planning stages for a tank.