I bleached my 25 after the move to AZ, I just made sure it was completely clean before I set it up. Tenecor, whom made my 240 acrylic recommends bleach to get a tank totally clean after a move or when resetting up a tank....Here is what they say
"Cleaning Aquariums With Bleach
On occasions where a complete cleaning of the aquarium is required, such as a change from saltwater to freshwater or after prolonged storage, the use of chlorine bleach can be very effective. A half gallon of bleach mixed with 20 gallons of water or more is great for sterilization and is perfectly safe for acrylic."
However, if you are not totally confident in your QT, put them in the DT....To my knowledge this is the most expensive fish you have, that is my whole issue with QT, if not done right, I find it more potentially damaging.
9 of my 11 fish in my 240 came from where your order is, I didn't QT any of them. When I ordered a Black Velvet Angel from them, they delayed the order twice because the fish was not healthy. I feel bad ever recommending to skip QT, but again if you are not comfortable with your QT setup......%%