I just got a new betta fish for my new Marineland 5 Gallon portrait tank. I just wanted help identifying if it's a male or female. I think that it is a female because there is no obvious beard and she is very peaceful. Also I noticed that the belly looks a little bloated. Is this cause of concern? I just fed her/him right before I took these pictures. The second picture (Betta 3) was taken yesterday and she wasn't fed. The belly is a little smaller there. Any help would be great, thanks!