dont remove the rest of the discus from the tank, take the pair and move them to a 20 or similar sized tank by themselves if possible, barebottom and with a spongefilter. after the babies hatch, theyll be able to survive for at least 4 or 5 days off the parenst slime coat. try to feed newly hatched brine shrimp and other prepared foods for baby fish. after 2- 2 1/2 weeks remove parents and put back in the main tank. continue to feed the babies brineshrimp and start to incorporate other foods like flakes and other foods that youre feeding the main tank. once the babies are about quarter sized or larger, and taking regular foods, they can be put back in the main tank as well.