I got really lucky, he's 7" and it seems that the finnage is going to keep growing with him. I was curious how tank bred and raised would compare, even my last one was farm raised, but this one has the most incredible personality. He is mellow, curious, friendly, in fact I can already run a finger down his side and he doesn't try to leave. He's ferocious when he eats, I am growing very fond of the little guy.