When I first set up my 46 Gallon tank years ago, I started off with the easiest to maintain population of fresh water fish: community fish. These are non-aggressive easy-to-care-for fish that are most suitable for beginners. And as this was my first tank, it was the obvious choice. However, the selection for these types of fish can become a bit on the mundane side, and the majority of breeds in this category tend to be less eye-catching.