Add water all over the sides just to the point of puddling on the top. And you shouldnt have to add water again. Also when you add the water, you dont want the press n seal as with substratless method it can cause condensation.
You havent had condensation yet cause it wasnt wet, which is why eggs are drying. Just add enough water and put on lid. All i do and eggs stay full till day 50 for me.
As you can See its SOAKED and on day 31 in incubator its still soaked
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