Leifbeaver, I found there have been 3 things that have affected my hatch rates. 1, quality of the eggs. I try to get 90% hatch rate ones and keep them stored in the fridge. 2nd thing is heat... in cooler weather it can take up to 3 days for significant hatching, however I've also managed to overheat them on occassion which just kills them. 3. Light... 24hr light really seems to help. When using a bottle I just use one of those tiny USB LED reading lights. Hopefully you find some of that useful.
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