I looked up and found your tank’s a 4’ tank. Consider me different but personally I’m not a big fan of buying fish you know will likely or certainly outgrow the tank, only to enjoy them “for a while / for a few years.” It spares you the heartache of knowing it’ll have to be moved on, if you really wanted that fish as your focal point, and the hassle of finding someone with a tank that’ll be able to house it for the rest of its lifespan (especially if you only do local pick-up). Some of these bigger Tangs grow quite fast, I’m not sure if the Naso’s one of them, but I wouldn’t be surprised if it was. Expect a 10-12” fish (in captivity) at full length. Melev’s Reef has had a Blonde Naso for I think 20+ years by now and it’s about 10-11” and it stands out as the biggest fish by far in a 7’ 400.
A lot of people go “but I’ll upgrade”, but a lot of times it never happens for one reason or another. They started with the same tank a decade ago that they still have currently. So unless you have a solid timeline for an upgrade and you have at least the bulk of the details in place, I’d hold off on getting anything that doesn’t already fit what you have.
Sorry, I know that feeling and it sucks, but maybe consider a Ctenochaetus (Bristletooth) Tang as a third Tang? Tomini, Square Tail, White Tail, Twin Spot and cf Striatus, Cyanocheilus.
Or consider one of those smaller large Angels like a Genicanthus, or a CB Lemon Butterfly from Biota.
And for the Clowns, I’d look into getting a good CB pair of the Pink or Orange Skunks. Underrated IMO and prettier, more natural than any designer Clown. Cheaper too.
