Triggerfish are very hardy specimens that adapt well to aquarium life if provided with a large tank and ample hiding places. Triggerfish reach an average size of six to ten inches in the home aquarium and often become very aggressive toward the same species and other tank mates. Smaller Triggers grow quickly, and are usually more docile in adulthood than if matured in the wild.
Most species of Puffers reach approximately eight inches in length with the exception of the Canthigaster Puffers, which reach an average size of only three inches. Puffers are relatively hardy and adapt well to captivity if provided with swimming room, a varied meaty diet, and a few hiding places.