had a powder blue which i added at the same time i added an Achilles tang. i had to take the powder blue backthis past tuesday after a month. (I TRIED EVERYTHING) He was smaller than every other tang in my tank, Blu Hippo, Achilles, Vlamingji & the SOB still caused so much headache in a once peaceful tank he had to go. i have a 220 tank as well will tons of hiding spots, i even redid the aquascaping after a few weeks to change up things (did this several times) and nothing helped. so needless to say i lost out on $88 bucks. got a small credit back but now my tank is being manages for ice due to the stress. do the research on Powder blue. many videos on you tube. good information. then you can make your decision. it can be done, but i would never do it again. i usually never fail at matching fish. that was an epic fail. if you were to choose the powder blue make sure its the last fish to put in you tank. pretty hard to add after they get established im told. and i can believe it. the Powder brown is much more forgiving. Good Luck, wish you all the best hope this info Helped.