Thank you Helene and Peter,
the fins have no red in them, only purely blue/turquoise and black colors, the red comes from the brown water and not using a flash, in reality there is no red as in the foto of the P. gunawani, so “blue line” was what I also guessed from either Peters or Mr. Linkes article (sorry, can’t find my copy :)) in the Amazonas magazine.
I’m just starting to dive deeper in the world of Parosphromenus with much to learn and I’m
looking forward to a good time at parosphromenus-project.org!
Greetings from Aachen,
Andreas