I would start a sponge filter once they are free swimming, at a really slow rate, and slowly increase the bubbles throughout brooding. I wouldn't change too much water at a time. Maybe remove a half gallon, and replace with a gallon. As often as you see fit, until the tank is filled back up.
You will want to remove the male as soon as they are free swimming, because he will still try to put them back in the nest, and then he will go crazy trying to manage them, and eat them.