and just a tip, kok size is genetically pass down. so the next time you buy an FH. know the strain/line of the FH if possible you should see the parents. kok sprout should be visible at the size of 2-3" it is then that you can consider it has a potential. remember just a sprout not totaly huge kok at 2" these are for ZZs BUT its different on the part of kamfa. there are kamfas that are late bloomers. on the food i would suggest try many kinds of food and look at the results for example XO humpy head for a week if it give you good results then use it as staple diet. but if your hard on cash get ching mix, the best by far for me. oh NEVER use color enhancer as staple diet of your FH it can sometimes burn your FH giving it dark color. feed them in small portion only.