Sweet tank!
Not tang police, but keep in mind that tang will outgrow your system in short order, and eats like a pig(bioload). I had to oass mine on from a 120gallon, to my buddy 180gallon, and it was still skittish in his tank as he ended up passing to someone with even a larger tank.
Love the corals, very natural looking reef, but at some point water changes alone will not keep up with the calcification demands, and will require dosing at minimum alk,ca,and mag. Of course kalkwasser can accomplish the same, but too could not keep up at some point.
I see no reason why if you keep feedings in check, that the canister filter will do the job, many ways to reef, congrats on a great start!!!