OKay, so i just got a baby sulcata tortoise whos only about 3 weeks old. I have noticed her shell is soft, mostly at the bottom. Im feeding her grass and weeks im finding outside. I just made a nice big tortoise table for her and i have 3 lights shining on the table. One is the reptisun 10.0ubv desert light, the 2nd one is the basking spot lamp, and the 3rd is just a regular bulb for some warmth at the other end of the table. Im spraying on calcium to her grass every once in a while, but her shells not gettting harder. Do i have the right UVB light or should i go and buy the T-Rex light everyones reccommending? Please Help!