hey,
as a felllow breeder who hatces flowerhorns every 2 weeks i advice you seriously grow your fish out. if sold at this size quality is impposible to tell, and you could be floodin the flowerhorn market with crappy grade flowerhorns which is why their prices are sky high to begin with.
at 3-4 inches you should be able to tell if the fish will devolop kok and what colors they will retain
also insted of getting 5 bucks a 1inch fish u could get 200 or even more a 4 inch fish depending on quailty,
only down side is out of 300 hatched babies maybe 20 of them will be decent and you will have to kill the rest. jumst my opinion. nice fry, but i think they won't be ready for another 3 months.