Offer them "the tastiest treats of Redfoot world". Papaya, mushrooms (porto bello or white mushrooms), chickory, radicchio, boiled chicken breast (a little), Mazuri 5M21. He needs to eat. Hibiscus leaves and arugula are often welcomed too.
I gave speedy Mango, carrot, a small bit of dragon fruit & shredded romaine lettuce on top of the pellets/cactus. They just had a BM. I am planning on taking them to the vet for a check up, I don’t believe the breeder had any sort of medical treatment or care other then hatching & selling