I bought my betta a week ago and at first he was in a small half gallon tank, but I researched that and decided to get him a full gallon tank with a filter and he seems much happier. However he wasn't eating for awhile until I put a towel over his tank at night and now (thank god) he started to eat.
I guess the weird behavior happens when I walk in and look at his tank. He'll put his face against the glass and open and close his mouth and wiggle his body really fast. I kind of get the feeling he's trying to push against the glass. Is he begging or saying hey? Because I am taking him to college in a couple days I want to make sure he's alright. Is his behavior normal? How do I know he's happy or content?