Rob,as with most thing discus everone has their own opinion,you can leave them with the parents for aslong as 6 weeks,but the pair will want to spawn again soon and the babies will be in danger,I would take them away at about 10 days so as to be able to give heavy feedings of brine shrimp and introduce them to ground beef heart,the reasoning to leave them longer with the parents is to keep their immune system topped up,as soon as they are alone they will have to develop their own disease resistance,as the dreaded 4 weeks approach,another reason I would seperate early is to start and harden the water up for good growth.should have said I meant 10 days of the babies feeding from the parents,not from hatching date,sorry.