I just read that a recommended tank size for one is like
500-600 gallons. That is a big a$$ fish. Did you ever see the teeth on one of those things??? VERY SCARY
Found that stuff that I was reading. Here:
Minimum Tank Size: 500 gallons
Care Level: Expert Only
Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4; dKH 8-12
Temperament: Aggressive
Max. Size In Aquarium: Up to 7'
Reef Compatible: No
Diet: Carnivore
Compatibility: View Chart
Origin: Caribbean
Family: Sphyraenidae
The Great Barracuda is an extremely large fish with a silvery silhouette.
It is a very hardy, long-lived, aggressive, and difficult to house with any other fish smaller than itself. A 150 gallon or larger aquarium is sufficient to start with as a juvenile. As an adult, it will require as much room to swim as possible in a 500 gallon or larger tank; long aquariums or circular raceways are preferred.
The diet of the Great Barracuda consists of smaller feeder fish and chunks of other meaty foods.