I have not really found this to be the case, and almost always wait until there are wrigglers or full grown 'fry' before stripping the females. In the same tank, that is. Without any competition, the alpha male may or may not have enough incentive to mate. He will then emit a bit of sperm in the nest, to coax the female, as she tries to take the eggs spots on his ventral fin into her mouth, thinking they are eggs. Then the female will lay the eggs in the nest, a few at a time, and pick them up.
Process repeats itself.
When she's done, the male will return and disperse his milt, she swallows it, fertilizing the eggs. This goes for ventralis and nasuta as well. They can be stripped at this time, but I prefer to let them do their thing and hold for the duration. Other suitable tankmates would be dwarf shell dwellers. Stay away from keeping other sand dwelling species in the same tank, especially if they are the same size or larger, for obvious reasons.