finished cycling my tank on friday with live rock from a healthy aquarium. Today I added fish. Added a juvenile hippo tang about 1.5" long. Been in the tank about an hour and he is just sitting at the top of tank on the side of the overflow just holding himself there. Plenty of rock and crevices to hide in. Is this just new acclimation behavior? or is this weird for a hippo tang to do regardless? might be premature, but getting nervous.