While browsing information provided by both large and small beardie breeders, I came across a piece of information that confuses (and WORRIES!) me a great deal. This bit is from Bloodbank Dragons' website, on their diet page. To quote then: So I'm confused. I thought that reptiles with a proper UVB bulb and plenty of spots that are close to it should NOT be receiving Calcium+D3? So for example, my beardie is under a 4' long ReptiSun 10.0, and his distance ranges from 1' to 2' from it. My australian water dragon has a 3.5' tall enclosure with 2x 4' long ReptiSun 5.0 - one on the ceiling, one under a basking shelf halfway down, and much of his preferred lounging spots are between 12" and 20" from the tubes. Because I thought these UVB bulbs were appropriate, I have been dusting my reptiles' bugs/salads with NON-D3 CALCIUM SUPPLEMENT. Tell it to me plain: am I hurting my reptiles by not feeding them D3 even though they have UVB tubes?