M.R Otter
Fishaholic
They appear to a happy couple,I think that they had already paired up.......maybe you should add some caves and hiding places.When they breed they lay thier eggs in a secret place.don't be alerted to see the tank one day and find these kribs gone they are a secretive spawner they will show up after the eggs had hatched.I hope that you know what and how aggressive they get after breeding. 