i raised my arow from when it was a baby... we fed it FD bloodworms from the day we got it until a couple weeks after. after the egg sack was absorbed we would try to feed it half a food stick every once in a while.. eventually he took to those instead so we fed strictly foodsticks.. we grew him to about 6-7 maybe 8 inches in a 29 gal.. now that hes growing more we put him in a 75.. hes a pig and eats up to 10 sticks in a single sitting..
forgot to mention... we have ABNS in all our tanks so he was started with the abn in a 29 gal still with an egg sack. after he absorbed the egg sack i wanted to see how he reacted to guppies in his tank, so i added a few. he didnt eat them and now he can lives in peace with guppies, angels, and baby bristle noses. i dont know if this is because i never started him on live food, but its really nice to be able to keep smaller fish with the arrow and not be worried all the time..
on the other hand... my cousin also tried to keep the arrows with the sack... the first one he had got pecked to death becuase he was dumb and tried to raise in a comm tank.... then he bought another and that also died but this time it was due to poor water..