Okay, – thats good to hear, Carole, that you have 20 years experience, – then you are very experienced indeed 🙂 .. more than me. I might have looked a bit on the avatar 🙂
I can see what you mean, – they do seem to have something, I can see the spots. If they are ick I would not be sure really. But there is something. Also the tail fin on one of them is looking a bit affected or a bit as if it is falling together (my danish 🙁 ..hmm)
I dont think they look harveyi, but perhaps blue line or close to that. You really need to see a full tail fin to determine that well.
I can understand you would like to act on these spots, – I am not sure I can advice you though, – but lets hope someone here has an advice.
It could be a reaction to the changing of ph, if they have been used to other for a longer time.
Also theres the decoration – makes me wonder a bit – it looks like theres not so much in terms of leaves etc. – is the water soft ? It looks to me like a reaction in terms of ‘not thriving’ and being as you said earlier ‘weakened’ a bit by that. And then more prone to kind of ‘anything’.
I have had good results with paros that reacted to settling down in my tanks with raising temperatures for a period, to around 26-27. Normally i have them cooler but it certainly does not harm them.