I don’t think he does because I put it in two days ago and it doesn’t look like he’s taken any. The calcium I use has D3 and multivitamin combined so would i just dust that with the calcium I have without the D3 on also? This is what I currently useYears ago people didn't know that their geckos needed calcium and D3 and there was a lot of education done to make sure it was being provided. Later on, we discovered that leopard geckos, being nocturnal, don't get that much D3 in the wild (or calcium for that matter for other reasons) since they're primarily exposed to sunlight just in the evenings and early mornings. Nocturnal geckos can actually end up getting too much calcium and the symptoms, ironically, are similar to what happens when they don't get enough. It was also felt that leopard geckos can self regulate their calcium intake and take just as much as they need and people aren't so sure of that anymore.
Bottom line, the best bet is to take the calcium out of the cage and be sure to dust the feeders with calcium and D3 every other feeding. That will solve your other problem (is the gecko aware of the calcium in the cage) as well.
Aliza