Crosshatch Triggerfish - Expensive, rare, and absolutely amazing. According to how these fish interact and react in our display, a large aquarium is required if you it would be totally unfair to keep them in anything less than a 100 gallon tank. They are sprinters, and love to swim the length of our display full speed. Their agility is surprising, the male likes to sit in front of the Seio 1500gph pump backwards....exercise maybe?