How to make a flowerhorn kok bigger?

[Chicklette]

I think it comes down to genetics. You can get humpty head but not positive if it works, I don't have it.

 

[LOCO_LOCO]

show him a some naked girls pictures lol just kidding
if the water warm enough i see his kok gets bigger also good feeding makes them grove more

 

[FishFreak95]

Ive started putting a mirror near my tank 20 - 30 minutes a day and my midas has become more active and playing with stones, digging bigger pits and whatnot and his nuchal hump has grown to what I think is probably at or near his max potential size for his age.
So I believe its true. but you can't get it bigger than its genetics allow.

 

[RiskEE]

apparently if you shave around it, it makes it look bigger!!! HTH

 

[RiskEE]

So if a girl puts her boobs in front of the mirror 5 to 15 minutes a day, they will get bigger?

 

[BIG_ONE]

I think this thread has run its course. Overall, genetic is the 1st priority into kok growth. Clean water and great variety of food is next. It is also claimed a lot by the experts that high pH 7.8+ helps kok growth. Therefore they use crush corals or dead corals for this.