I'm thinking of getting a tank and adding some different types of fish with my Betta. I would like to add 6 neon tetras, 4 ghost fish and maybe a plecostomos. My question is, would ghost catfish be ok to add with the Betta and Tetras? Or are they incompatible? Also, what size tank would I need for that many fish? My boyfriend is thinking 10 gallons, but I'm thinking it would probably need something bigger. Any advise?