Alex, Thanks for all the info you have given so far
I am the friend who roverhere spoke of
I now have one pair of them home
So far they are in a 55g with plenty of rock until I decide where they might go
I also look in Burgess it says 8cm
They seem to hang out in different areas of the tank but are not aggressive toward each other
But looking at your pictures and see what little there is out there
leads me to believe we have something different maybe Apogon melas?
The picture is not very good as they are hard to catch out but it will give you an idea of what we have. I do see the color change as you describe
Thanks
