Dart Frog Egg Tubs Out of the Vivarium: Holding 90 Percent Humidity Until Tadpole Transfer

My first Oophaga pumilio clutch pulled from the vivarium collapsed on day four: the leaves curled, the egg mass shrank to half its size, and by day six the embryos were gone. The second clutch, moved into a 2 litre tub with a thin hydrated gel pad under a mesh platform, hatched eleven of twelve eggs…