hy. i've just bought 2 bettas yesterday, small ones, and they seem to get along just fine. but the problem is the people from the petshop couldn't tell me what they are ..boy or girll??? today, i bought another one, from an other petshop, and they toled me it's female, and it's larger then the other 2. now the new one, is chasing the other 2 arownd. my biggest problem is weather there is a way i can tell witch are males or females so i ca separate them, couse i don't want them killing each other.please help me!