Did those kribs make you babies already? ;-)
Kribensis fry can actually do a fair job of holding their own in a community tank because the parents are so good at watching over them.
From the pair you bought from me, I still have about 15 juveniles swimming around the 150 gallon, possibly more, and that's with about 10 large Raphael cats and a group of B. cupido to compete with (and without any help from their parents!).
If you want thousands of kribs, raise them separately, but know that you'll almost always have a few that survive from each spawn if you just let the parents do their thing.