whats your humidity like? if its high enough, then thats probably all youre getting, i dont think this species hatches out periodicaly or in groups or batches or anything, i think its all at once. try raising the humidity, maybe it'll incite/help the rest to hatch. i could very easily be wrong as ive never kept this species (i have kept other creobroter though), i just dont think off the top of my head that its a species which hatches out over time, i think its pretty much all at once. im sure someone else here has kept them and can tell you for sure, but as far as i know, they dont.
