Looks FATF to me.
As for the black in the adipose fin, both FATF and BATF have a large number of melanophores (cells containing black pigment) in their adipose fin. At this size, the difference is most obvious in the number of melanophores that are in the fin. In a FATF, the melanophores are sparse and scattered. In a BATF, the melanophores are densely and evenly distributed throughout the fin. Unless one has seen them both in person, it can be hard to tell until they're big enough that the adipose fin isn't clear anymore.