ID this flowerhorn

[Kaif]

Kok will usually come when it shows no more signs of stress.

I have in a 20g Tank(for now) temp is 28°c good filtration. What else could stress him?

 

[flowerhornfishman]

I have in a 20g Tank(for now) temp is 28°c good filtration. What else could stress him?

That's good enuf to me. Give him some good food. Small/crushed pellets and bloodworms at times.