Marble gecko help

[x-mellaa]

Hi i just got 4 southern marble geckos i am currently running a small heat mat should i remove the mat?????? or do they need heating?
Also one laid 2 eggs but the eggs are sunken in on one side is this a bad sign???

 

[flip.acro]

gecko questions

Did you get any help with your gecko eggs?
I was going to post similar questions but looking through the forums it appears I'm just as likely to be ignored or told of for not being educated enough.