Dont just give up on them until the 4-5 day. If you dont have tadpoles in the eggs by then THATs when you can decide to throw them out. There is a small chance 1-2 of them may be fertile. I had groups of 50 eggs each and only 2 of them ended up being fertile out of the entire group. Egg raising is the HARDEST part of raising red eye tree frogs. STAY ON TOP OF IT!!! 1-2 hours of humidity at 50-60 percent will dry your eggs out.