Personally all my Testudo eggs are incubated on a dry substrate. Some people do use a damp substrate and hatch eggs just fine. I just don't like to advocate it for someone new to egg hatching as it's to easy to add to much water to the substrate and have the eggs split and go bad.
Makes it even harder when eggs need to be on a damp substrate like Redfoots and Hingebacks to get it right over the entire incubation. If you do want to try a damp substrate with Testudo, make sure you make it damp at the begining and not add any more water during the incubation process. Than add some water when you get the first hatchling pipping. This helps with the hatching process.
Danny
Makes it even harder when eggs need to be on a damp substrate like Redfoots and Hingebacks to get it right over the entire incubation. If you do want to try a damp substrate with Testudo, make sure you make it damp at the begining and not add any more water during the incubation process. Than add some water when you get the first hatchling pipping. This helps with the hatching process.
Danny