Thank you for all the tips! Yes, we have calcium with d3, so it should be okay. How can I best give it to him, just sprinkle the mice/roaches with it? Our dragons just eat the vitamins/calcium mixed with some water from bowls, but it woul not work for a frog. And second question, would a dried moss bought in reptile store be okay to add to his tube? I was thinking it could be good at holding some humidity, of course we will add cocofibre too... I just want to make sure that he eats and poops fine firstly. And the breeder was keeping his babies in sterile tubes too so I did not wanted to stress him more with a new substrate that he totally doesn't know.