Yes, Helene is right, I am very happy about that encounter. I have met the couple for several times, and always Allan had many fish (Parosphromenus of course, different species) readily packed in his luggage.Some species I got for the first time from him, e.g. deissneri or spec. Kota Tinggi, excellent fish, in best health condition, and rather easy to breed for a non-beginner. But nevertheless Allan stayed to remain nearly the only source for them, until … he decided to stop aquaristics and give everything away from one day to the next. Before we had often contact via eMail, after that the couple fell in silence.
Therefore I am very happy to read that you met both of them.
I hope we meet in Hamburg again?