I've had my juvenile red footed for 3 months now. In the first two months, he ate a lot of veggie and fruit, mainly romain lettuce, dandelion and tomatoes. I did sprinkle calcium with it and feed him everyday. About a month ago, I bought him tortoise food pellets, and since then, he completely stops eating veggetable. Now he only eats the pellets, about 10 to 15 pellets per day. Sometimes, he'd take a few bites on tomatoes. And that's all, nothing else.
I keep him outside in a big box, with water and hiding box, bathing everyday. He always tries to get out, cuz sometimes i let him wandering in the backyard, and he loves it. He also likes to eat the soil or dead dry roots in the backyard. I always take him inside the house at night.
I really want him to eat variety of veggie, fruit and the pellets as well. What is wrong with him? Pls advise of what I should do. Thank you in advance for your help.

