Sad news. We had one baby hatch only to die. He spent more than 48 hours getting out of the shell and didn't have the strength in him to keep going.
Dad tried his best, and their other 3 eggs turned black a day after. They refused to sit on them after they were black.
Mom & dad are now happily back together. No more fighting and now they have a cage twice the size. They are also eating wheatgrass I've been growing (organic soil only).