Originally Posted by Fishfighter
I've heard of 55 and no less. Preferably 75 and up .
If it's a true volitan, you're going to need more than that..... those easily get 12" to 15" and need lots
of room. A 6' tank in the 125 to 150 gallon range would be an absolute minimum.
You figure if it does hit 15", a 72" tank is still less
than 5 times his body length, and their "wingspan" can reach as wide as their length. A 125/150 is roughly 18" front to back, so when it's spread out, it has just enough room to swim a few feet, turn around & swim a few feet back down the center of the tank.
, this is one of those fish that should come with a disclaimer.... "This thing gets freakin' huge"