U need to see the colour of the real fish, if not then video. Base on photo not safe, some may be colour edited.
If seeing the real fish, the scale is red even under white light, likely you won't go wrong.
Secondly, is it tagged with cert?
Red aro require grooming skill and technic. To sustain the redness also not easy.
Do some readup here, lots of info can be found.
Lastly, I have not kept red aro before, all the above is I learned from here.
