Yumm... Frys

My tiger barbs spawned 2 days ago and I only managed to catch 3 eggs. Today when I looked at the tank I see 2 developed eggs but they haven't hatched and 1 that's hatched but doesn't seem to be moving. Are they dead or do they need more time to hatch out of their eggs? Online it said the eggs hatch between 1 day to 3 days and become free swimming after 5.

Its hard to see the frys but I know that at least 3 eggs are developed and can see clearly.

What should I do to prepare the frys? I just hope that there are lives ones because I think my PH is a little high.

I had 7 living frys last night and this afternoon when I got back from work, there were only 3 (2 free swimming and one not yet), and the other 4 are gone without any traces...

They are kept in a fry net and the holes were smaller than the frys (not that its impossible for them to get through).