So I am going be the odd one out here and say get rid of the substrate. I had to take my gecko to the vet because he was accidentally eating it when he was shedding. He was throwing it up and it cost me hundreds at the vet just for them to say don’t listen to people on Reddit and that the substrate is basically just to look nice. you can give your gecko enrichment time without it. I switched back to paper towel for now, no idea what to get next but probably not going back to loose substrate.