I received a zz flowerhorn from thailand. Almost 3 days in travel my zz got stressed and his kok shrunk. I noticed there is a little skin that got peeled from its head. After few days my zz got back to normal amd his kok grew back again. Yesterday i noticed a lump coming out from his kok on the part where the skin was peeled. What can i do to take it off or to heal it?
