It looks like an Osphronemus goramy to me, which is highly likely in the first place, given that O. goramy is by far the most common species in the hobby. It is definitely not Osphronemus laticlavius, as a couple people have suggested. O. laticlavius (red tail giant gourami) juveniles do not have stripes, and they have a much larger black spot near the caudal peduncle.
It will be very easy to identify once it reaches subadulthood, but until then, I would stick with O. goramy.