Want to know why I didn't know? They have little containers hanging in the regular tanks. They're smaller than the cups they come in in stores, but at least they are heated and filtered. I'm very pleased with this information. I'm going to buy my VT Bettas there from now on. They didn't have any other tail types or females that I saw, though. I got my 10 gallon there tonight and some gravel. They even have a rewards program. It's Atlas Pet Supply. They are a SUPER small chain store. I love the selection they have.