do i need a light?

[Lija]

checked your other thread, yes he does have mild case of MBD, and you were given excellent advice on supplements, that you should follow. 2% UVB in his case might help to some extend, but you need to get the lowest voltage UVB lamp. With that being said there is no scientific proof that UVB will help pacman frogs with Ca metabolism. Those frogs are adapted to live in a shade and don't need UVB.