that's argued
D holacanthus is usually the common
porc puffer. They grow from 12'' to 18'' depending on who you ask.
So that's big plus they aren't a lean fish so it's quite the bioload.
But they should be okay in something over 100g but probably more comfortable in something 200+
I think they grow fairly quickly. But if you got a small one I think they'd be okay for a few years anyways in a std 125. the only problem with that is when they reach adult size turning will be harder because of the small footprint.
I'm thinking about setting up a FOWLR now intead of upgrading tanks for me reef. (dodging Tims and motorslaves looks of dissapointment)
It'll be a std 125 and in a few years I'll graduate and move him into a bigger home.
Now I am certainly no expert having never had one so all my info is recycled
Oh yeah if you see d. hystrix it groes to 3 feet and would probably need a 1000g to support it.