My God, it's like a tsunami of fry. Look at all that BBS in their bellies.
I am forever finding fry in with my males and females. I am harsh on the 'free range' fry. They get normal water changes, no food but what they scrounge from the tank (although I usually do toss in the odd serving of BBS/grindals/MWs) until they get of a big enough size that they start eating with their parents.
It's surprising how many fry start to crawl out of the woodwork once they get big enough and fast enough not to be lunch for their siblings.