Thank you for the post. Currently about to embark on a new chapter of keeping an aquarium. My desire is to keep many varieties of Tangs. Then I read to an extent this is not advised. Looking at pictures contradicts the advise. More reading here reveals a quarantine nightmare. Add one fish at a time, introduce all at once. So many contradictions. Previously I had a Naso, Sailfin, Yellow, Powder Blue and Hippo tangs. A tomato clown as well and the tomato clown was the nastiest of them all! All above added one at a time many years ago. Will end up with corals I would guess. My big question is this: 250 gal tank 78Lx31Dx24H with lots of hiding places. Do I drop a group of 4 to 6 all at once or go down the line from least to most aggressive? Need to dial in my choices. Probably something like: Naso Sohal Powder Blue Powder Brown Acillies Kole Sailfin Fowleri Purple Yellow Atlantic Blue Hippo So with some research and input from you if you would. Is a new tank an issue since the algae isn't there? I intend to grow macro algae and harvest for food as well as other recommendations.