Apologies for the way the ripples/reflections affect visibility. The newest fry are near the surface (all along the bottom half of the pic) and might be initially hard to see since the reflection catch the eye first. The older fry are at the bottom of the tank in the top of the pic (typical yellow/orange tilapia fry). Probably about 250 fry from the most recent birth. I've removed all the loose oyster shell from the main tank, it seems this has discouraged breeding behavior and encouraged eating again.