now comes the hard part..
leave them alone
if you bug the parents too much they may eat the eggs.
but it is early ..the eggs will sit there for about 3 days then hatch to wigglers.. they may move the wigglers but often they leave them there..eventually the fry will stick to the praetns and feed of the slime of the parents.
the problem is..if they Discus feel threatened..they may eat the babies.
if you want to have a breeding pair you can move the pair to a breeder.
but if this is their first spawn..I'd leave them alone and see if they keep spawning.
tand the spawns actually have some hatches..then consider a breeding tank.
set up with sponge filters and a breeding cone.