Thank you, Bernd.
So I think it cannot be excluded that we might have to do with an unknown form of pahuensis. This forces me to separate the new female and my old male – I think these two “forms” shouldn’t mingle. And it puts me in the need of a male of your pahuensis – otherwise I will now have two single individuals of two different forms living lonely in their tanks ……….. 🙁
Did you check if it is possible for you to give a pair or at least a single male to me? That would be great.