I kept a male Dovii for many years in a large aquarium. He grew to a good 15 inches and was quite bulky. Unfortunately I have no pictures but it was a magnificent fish. It owned the tank. I could not keep any fish with it, even when it was young. Once when I tried to introduce a large Jaguar it rammed my hand as I lowered the fish into the tank. The tank had a large rock sructure in it with good hiding places but although small fish tried to hide the Dovii would ram the rocks trying to shift them to get at the fish. Beleive me, these fish are very very aggresive.