When my daughter Charlotte went off to college, suddenly and abruptly petless, it did not take long before she determined the rule about pets in dorms: fish only. On impulse, and accompanied by a new friend who had a tank of goldfish in her room, Charlotte made her way to the nearest pet store and bought two Siamese fighting fish, also known as Bettas, and a small plastic divided tank to keep them from killing each other. Read more…