i always suggest a 2 gallon or larger to new betta keepers. while some may see me as a hypocrite for saying that, yet keeping Lulu in a gallon, i have reasons i've stated many times, and will state again: She hates anything bigger. i tried her out in a 2 gallon, and she hid for a week straight, barely coming out to eat. i had to work, to get her out of that cave. no, she wasn't ill. she didn't have ick, or velvet, or anything. she was scared. it was a planted up tank, with enough plants to keep any betta happy, but she didn't care. once she was back in her 1 gallon, she was happy, active Lulu again. if someone can't get a 2 gallon, and must get something smaller, i let them know how much work goes into keeping a smaller tank. keeping Lulu happy isn't easy, but i love her enough to do well over 3 water changes a week.