noted bro. ill try to make his space a little smaller. he's with my classic kamfa in a 50gal tank. yes i can see that they grow very slow than a ZZ and im having second thoughts on power feeding him. i feed him 3pcs of humpy head per meal 3x a day.Kamfa takes a while for the kok to show up. In my experience, i put the kamfa on small tank like 10-20 gal to start with, the smaller the tank the lesser for it to move so u can focus on the kok. Genes plays a good role too like 60-70%. Some new gen kamfa shows there kok at 1-2 inch then the lesser the grooming time. Patience plays a part too when grooming kamfa coz they tend to be slow growth than zz.