Help with Kribs fries...

Hi All,
This is starting to get ironic but here goes:
I have a spawning pair of kribs 2 on a 40 gallon planted tank.
I can also mention that now they have spawned for the fourth time and each
followed spawning there are more fries!
On their 3rd attempt I siphoned half the fries to a 30 gallon tank but was
starting to loose all of them, the other half was eaten by the parents.(they
were removed a few days after hatching)
This is the fourth spawning and I do not with to loose the little guys....I
am thinking of maybe removing the parents after a longer period ? or should
I wait longer and once again remove the fries the 30 gallon tank, but taking
some water out in order to ease it up for them while searching for food ?
Comparing to the 3 previous attempts there numbers of fries is
increasing.....
Any suggestions for saving them ?
10x

Amit