Good luck with the pyramid, hope he is ok.
There are a lot of opinions about QT tanks an if they are good or bad, I personally don't QT any fish. This is why.
You buy a fish take it home and acclimatise it the the QT. you leave him in there for say a month and every thing is fine, the fish is happy and healthy so you decide it's time to add him to the main display tank. So you bag him up and acclimatise him to the main tank (that stresses him out) if your QT tank's water parameters are the same as your display and you just put it straight into the main tank via a net or jug (that stresses it out) then you have the problem that if there are any fish in there like tangs or angelfish or anything else that is slightly aggressive like my clarki clown! They chase the new guy and beat it up a bit (that stresses it out) if the new guy is prone to ich then it's going to get it through the stress of being moved from the QT and the chasing of other fish. Therefore I don't QT any of my stock. This is just my opinion and I'm sure there are others with the opinion that QT are in fact a good thing. Each to there own. If you think it's worth doing then go for it. If everyone had the same view as me it would all be a bit boring.