Hi,
Congratulations to this success!!
Could you try to take some pictures of your paros, especially of displaying males. I think deissneri is one of the most important species and we don’t have any of them in stock at the moment. If your animals are deissneri, we have to make sure this stock will survive! Deissneri is one of the species with the most “history” because the first species that was to be described was described as deissneri. However, it seems that many variants of any paro-species are called deissneri by the trade…
Now to your question:
As far as I experienced, paro-eggs are often of a “dusty” coloration thus, not clear at all. So this “milky” color can very well be normal. Since the eggs are now already more than one day old, they should slowly start to show a fine greyish line which is the embryo. If they are fertilized, of course. But since the male still keeps them and tends them, I do not see any reason they should not be. I would advise you to just wait some more days. They should soon hatch and maybe, they will survive in your tank.
Good luck!!!
Rafael