HI everybody, I recently purchased 3 green lantern platys. Can anybody tell if they are male/ female or give me some tips on sexing them? ( sorry for the blurry pics, my camera sucks ) . But anyways, yesterday I noticed the slimmer platy was chasing another one around. No fin nipping or biting, just following/ hovering? I have 2 chubby ones and 1 slimmer....maybe 2 females and 1 male? If so, do they appear pregnant or is the round belly normal for female platys? I appreciate any and all tips!! New to the world of the Platys and am open to any new info!