i kind of did this but i just netted out a bunch till i had maybe 50 left and feed them to my angel and cherry barbs.IMO the best bet is a catfish to eat the fry. Something like a raphael or bumblebee catfish that stays under cover (and out of sight of the parents) by day that will snatch the fry after dark. A lucky few will be missed and grow out, but it's much better/easier than dealing with hundreds of the buggers. Once a pair starts spawning they'll keep going for some time before taking a break.