I fully appreciate you explanation, Peter. You shouldn’t regret. I agree with all elements of it. Moreover, it contributes in a positive way to this discussion.
I am familiar with your clarification as I do have read the book you mention, and often open it again for consultation. So I hope there wasn’t anything in my comments that gave the impression that I disagree. My previous reaction was quite provocative, due to my practical motives as aquarist. I know you understand them.
When feeding my controversial P. tweediei (?) this evening, I understood their name doesn’t influence the fact that they are very goodlooking. Of course I’ll continue to breed them, in spite of the unexpected constraints that I’ll have to keep in mind.