if its been 20 days I wouldn't worry to much , do get the proper uvb light asap . when was the last time you gave cal with d3 ?I just realized that the bulb I had in the fixture over our Ambalobie hatchlings was not the UVB but just a plane 6500k bulb. They have been in there for 20 days like that. Should I be concerned? Should I give there food a dusting of calsium with D3?