So I have a 3-4 inch gem tang in my 72x18x16 120 gallon tank. He has been in there 4 days. I added a yellow eye Kole tang about the same size. The gem went crazy and would charge the Kole. I added a mirror and rearranged the aquascape. Have 2 algae clips and keep nori and fed 3 times a day. The gem is cruising around fine but the Kole is hiding. How many days until I should worry and possibly pull the Kole and rehome?