OK so i start the indian runners on... duck starter crumbs with tiny mineral grit then i move them onto duck grower pellets with grower grit (i dont know what makes it "grower" grit maybe it just isnt as big) then depending on what sex they are... if i have a girl... I use layer pellets (i havent seen any of those for ducks, just chickens.. are they OK?) with oyster shell grit (or do i use normal grit and oyster shell grit?) and if a drake hatches... I use duck maintenance pellets with normal grit NOT oyster shell? or do i use oyster shell? ARGHH CONFUSING!