What did you see that characterized it as a Flying Fox?
Doesn't look like a true SAE.
What are you not seeing for it to be an SAE?
I was looking at this website as a reference on distinction:
Not the best picture but he is so small its hard to keep a focus on him:
On a side note I have been watching him eat the black hair algae I showed pics of in the freshwater plants area. From what I read only the SAE's eat this stuff....so it makes me think I got the right thing...but I wanted to be sure.