I talked to the owner of Sticky Tongue and she said I should use the Mineral-all OUTDOOR formula with NO D3 because my beardie gets fresh greens which she said provides the D3. My dragon is housed indoors with a reptisun 10.0 and most info I have read says that if your housing indoors without a mercury vapor bulb you should use the INDOOR version WITH D3. The Beautiful dragons website states that many people don't ever use D3 because it isn't easily absorbed by beardies and too much can cause excess calcium to be absorbed. Any ideas? Isaac (OCD beardie owner)