please do help that fh is still small cant wait for it to have a big kok i wish its a male

Nice pearl buddy, but hate to smash your moral but all flowerhorn don't have the gene to grow kok, if you wish for one buy one from your LFS that has GENE for it, otherwise you can raise this fry for years and still no KoKs

ditto that!

Yep, not all will grow huge KOK's. It's all in the genes, the parents and their background.