My grandma wants a betta bowl, she won't listen to me when I tell her a little bowl isn't good and I'm worried she'll try to do a 100% water change on a 5 gallon tank and end up breaking the tank and hurting herself. She's had them in bowls and they did GREAT. She did daily cleanings and weekly 100% changes, also her house is 80 degrees year round. Please list some bowls you have and if you don't have any I'll make one myself (1 gallon fish bowl, small filter, live plants, the same as a tank just rolled into a smaller package).