Wow a 10 gallon for a single Betta, thats cool. Bettas are cheap to keep right? I mean all you really need is about a 1g tank? And the air stone, small filter, and small light. Some decor .... Can't cost too much.
Yep, they are pretty cheap but I would stay away from filters and air stones in a smaller tank because they may become stressed by the current. Also if I can put in my opinion, 1g is suitable but he or she will be happier in something a bit bigger.
Kowalski - the tank and background look awesome! Great job!
Khulis.