he is very nice but i suggest a bigger tank unless its a 2' x 2' you can keep he maby anoner inch but you just be harming your fish if you dont upgrade soon
His fine, has the tank to himself - should be good for another month. His only 7cms, i can export him into my 6ft display once his bulked up. Other wise the king kongs will bash him
hahah dont worry his diet has been greatly reduced, also i dont feed him much hikk sticks since it's too fatty. Only do it twice a week and the rest just bio gold +
Hikari brands have MSG.. LOL Try to get him on NLS.
Kok size, it depends since his kok is a water one. Only time will tell. Keep his water clean and feed him well and his kok should grow some more for ya.