yeah that looks alot like my culture,it has always been that way.
in my enclosures i use coco peat about an inch deep,i water once a week(when i feed)
and it drys thoroughly before i feed again.
i use a heat mat underneath.
i didn't used to but have found they seem to reproduce much better with one.
i use a thermostat set at 85.
i think i will try out seperating the dark morphs and see if they have all dark babies.
would be interesting.
andy