yes, very easy to breed if the male and female like each other.
just put an inverted terra cotta flower pot with a small hole drilled on the side. i find that the tighter the hole, the better.
if you have good water stats, the kribs will do the rest. all i had in my tank was two said flower pots when my kribs had fry.
when they do have fry, just partition off the intake tube with a tank divider.