We all know how difficult it is to identify the sex of these fish, so please post a picture in here and we'll try to help you (or at least give an educated guess!).
Thanks for the help. I'll try and get better pics but I'm gonna leave it a week or so. I put them into a temporary tank last weekend when i got them, as their one hasn't quite finished cycling. I don't want to get them out again until they're being moved to the new tank which will hopefully be over the weekend. So I'll take the opportunity to grab better pics then. I may also be going to pick up three more tomorrow, so I might have 5 that need sexing by time the weekend comes