I'm new around here. I live in Alaska. (Very snowy right now, so I'm glad I have a warm house.) I have three Male Betta's. The all have pretty small tanks because of the limit of space I have in my room and the fact my mom will freak if I try to get a bigger tank for such 'small fish'. (The tanks are like One half of a gallon.) I do water changes everyday. I do the best I can to make sure my little fishes stay happy.
But anyway, my question is...If I got a 2 or 2.5 gallon tank for my biggest Betta, how would I heat it sense there aren't any heaters for those type of tanks, (or is there)?