I'm trying to start a 10 gallon tank and would prefer at least two different types of fish, but I know that the quantity is limited due to the tank size. Any recommendations on resilient fish for starting a tank, and what fish would go well with those to be added later on? As I posted in another thread, I tried 2 neon tetra, but I think they died from stress. (which I now know are schooling fish) Thanks for the help!