I have moved the topic into the category Breeding 🙂
Regarding what species, – Sverting, I do not agree really. P. nagyi has much shorter ventral fins, with a dark spot. And certainly in this attitude the males would have shown the typical nagyi totally brown colour.
As for harveyi, in my opinion harvey has a rather longish and a bit more slim body, – and again the black in the tail is wider. But there are similarities also I agree.
I dont know if I understand what you mean by ‘being lost with Blue Line 🙂 as you wrote, – ? Blue Line is as far as I know extremely attractive and beatiful. Did you read this post ?
https://parosphromenus-project.org/en/forum/3-Species/1352-blue-line.html
photo of p. nagyi
and p. harveyi
About the tail … I cant remember quite which fish it was, but I know that I once had the same occurring with a fish … you know 🙂 it might actually have been a guppy :woohoo: … but the thing is I remember the tail was split in the same way, and I wondered if this would continue on in generations, – and I did as Little is suggesting, I tried anyway, thinking it would never be any worse than I would just have to not give these offspring away.
Actually what I did find was that it did continue on in generations, – some offsprings actually had it. Not all, but a few did have the same ‘fault’.
Of course, I dont know, – theres is also the chance its a damage from early life. But if its genetic I would say theres no way to tell that it will not show up, – maybe not immidiately, but if the ‘fault’ is brought on to later generations, – I think theres a chance of that happening unfortunately.