Ok to start with SEPERATE them NOW...you can't keep a male and female betta together, one or both will be dead by the end of this week. Do some more reading on bettas...You can keep females together I recommend getting them all at the same time and preferably from the same tank as they will be able to establish their pecking order. Males are to be kept ALONE, they will kill eachother and females as well. I recommend getting your male a small tank anywhere from 2 to 5 gallons, they are much happier alone. Also don't keep your male with another fish that has long fins as he will probably attack it as well thinking it is another male....Please seperate them now so there are no unfortunate deaths.