Parents clean up after fry sometimes (both food & poo) or just move them to a clean spot. They sometimes chew & spit food for the fry. & when they move them they sometimes "chew" them a bit. I don't know what that means, maybe feeling to see if they're normal...but after a while (1-2 weeks or so) the male "forgets" to spit out fry & the female may drive him off...until she's ready for the next round of breeding...she's not usually as "forgetful" as males but it does happen...
How may fry do you guess you have? The spawns will get bigger, convicts can soon get to 100! I did warn you...& that will be every month!