just take fish out of water for like 20-30 secs each time,using ur thumb nail or hair pin delicately to open the lower jaw of the mouth and dip the whole fish in tank filled with pre-existing tank water,the fry will come out by themselves but if they r still eggs,u need to turn the fish down with open jaws and put eggs in egg tumbler.the mbuna eggs will turn into fry in 14 days but it is advisable not to even touch the fish before 17-20 days if u want successful spawn and after some experience with it u can do it on any day