If the fry are not in danger of being eaten after they hatch, I would leave them right where they are. From the pic, it looks like they are kind of protected from the other tank inhabitants. Dad will not move away from them, not even to eat, until they hatch. Would it be possible to put something else in that corner to keep them more out of sight until they would be free-swimming? If they were in a cave then it would be easy to move both dad and the cave with the spawn in it. Dad needs to fan those eggs constantly, so if you do move them, make sure they have constant water circulation directly on them. Get them a cave. It's a lot easier.