Bdfb question

[spooderman123]

Apologies if this is sort of a dumb question, but I am wanting to get into bdfbs and I was wondering if you could get groups of one gender so they don't breed because I know it is hard to raise them up and so I think most people have to kill the babies, so if you get a group of only females or something then you wouldnt have that problem, right? Again, sorry if the question was kind of obvious, I just dont want to assume something when it comes to this especially because I am a beginner to keeping inverts and its easy for me to get something wrong. Thanks!