I have hatched tens of thousands of nothos and used the deep water hatching for many stubborn eggs with great success. I have only noticed belly sliders on fry that the yolk nutrients were used up upon hatching. Perhaps some eggs are resting in nature until more favorable hatching conditions exist such as deeper and more water in the temporary pools. This is purely speculation but based on hatching over 100 species and or locations and subspecies of nothos over the last 30 or so years. Maybe trying both methods will yield some fry.
put the eggs and peat in a small jar filled with water. Place the lid on and drop the jar into a filled 55 gallon tank or other large deep container. Viable eyed up eggs should hatch within a couple of hours
Lee If you remember my talk in Syracuse I proposed the same thing in water changes..Massive changes are more beneficial in my opinion then small constant changes> I really notice it the 2nd day after the massive change is made. Egg production goes way up. I have tracked egg production for Fundulopanchax and the 2-6 day after a huge water change promotes the greatest activity . After the 6th day the egg production ebbs until another large change is made.
People getting ripped off on aquabid with killi eggs is very common. I have heard every excuse as to why that is. If you place the peat under a dissecting microscope you should see eggs or the remains of eggs if they have died and fungused. If a Seller doesnt guarantee at least that the eggs were collected then avoid them at all costs. If no remains of dead or non viable eggs are not seen then leave feedback stating it. Any honest seller knows that eggs can die in transit.That being said they also know that the remains of such eggs are visible for days if not weeks in peat. Please invest in a dissecting microscope if you want to gamble on eggs from aquabid. No " Honest" sellers will have any objection and will not ever say that nothing live or dead can't be seen. If they do avoid at all costs and leave feedback if your taken advantage of.