yes you should be giving her a Multi vit about 2-3 times per week at this age. I use Sticky Tounge Miner All. This has a bit of Calcium and D3 in it along with the minerals, so if you have a Calcium with D3 in it you should switch to a plain calcium that is D3 and Phospherious free. D3 is not nessasary with a Merc Bulb and it can be over done.
Sticky Tounge Miner- All O is D3 free. The sticky tounge is really one of the best vit suppliments you can buy in the states. Here is a link to Reptile supply. com I have bought several things from them and they are pretty good. Look around though you may find it cheeper, but this seems like a pretty good price to me. http://www.reptilesupply.com/product.php?products_id=54