Thanks, I have had these guys for ten years and they go through spurts of laying eggs every other week. I have tried twice to raise the fry. A source of small live food is probably all I need but, my two attempts with frozen foods have failed. I cannot remove the eggs as the rock is the biggest in my tank and impossible to pull out.
My camera is a Fuji S2 Digital SLR. It is IMO an excellent albeit older camera.
John