Me and this fish have a love / hate relationship.
Love the fish hate but the attitude!
They are about the only fish that I would and did set up a species tank for.
A 75G all to himself.
Try to avoid the temptation of adding other fish.
Even though it’s small now it will be the only fish left in the tank at one point.
Here is the scenario in most cases.
One day you wake up and all the other fish are chewed up or missing eyeballs.
I would also recommend getting starboard for the bottom of the tank. My (and most customers I know) trigger loved to move all the gravel around. Then it will pick up pieces of rock or coral and drop them all around the tank. Mine would move rocks that I thought were heavy! Pieces twice his size
If you are able to do this without adding additional fish go for it. They are the coolest looking fish with larger then life personalities. I would also plan on needing a larger tank for him. I donated mine to a local aquarium when I thought he was cramped. I think a 120G would be about the right size for one.
JMO HIH
S