I'm new here, and new to caring for a Betta the correct way. Like most people, I always thought they were okay in small bowls, and the petstore owner I bought our blue male Beta from said he didn't need heat or anything special. I've done some research and found otherwise, but please forgive my overall ignorance. He's in a small bowl now, but later today I'm taking my son to find his fish a nicer setup. 5 gallons, plants, a heater, etc. Is there anything that can live in the tank with him? My husband thinks 5 gallons with 1 fish is ridiculous. I've read different things. I seem to remember having an algae eater in with one once, years ago. What, if anything can live with "Azure," without harming him or becoming food? Thanks for any answers.