I would think it would be up to the frog depending on the climate conditions from where they exist in the wild , I am familar with aquatic turtles and monitor lizards mainly and this frog is a new realm for me , not that I have'nt kept amphibians before , I have had tree frogs and salamanders and such . It always seemed to be the case when I went with a natural environmental approach is when all the problems began , even though I kept thinks clean I used some things that now seem harmful such as moss and plants and substrate , it was overall difficult to maintain a setup that did not end up producing something toxic that did them in , this is not for certain but my thoughts . It seems that brumating is similar to hibernation that other herps go through and this is maily so they will stay with a breeding cycle , if the frog sheds skin in small amounts as mine seems to do would this not be good enough ? my fear is that if I go with bed a beast and water then I will end up with spots of waste that may go unseen and since frogs do absorb toxins through the skin I may be asking for trouble , this is only my opinion , if I had all the answers I would be replying rather than asking , there seems to be plenty of info on other sorts of so called pacman frogs but for the budgett there seems to be very little , they mention dry savannahs in agrentina is where these frogs live making it sound as though they may in fact go through long dry spells and perhapes this is the reason for their brumating , I haven'nt been able to find any source of good info on the actual climate conditions of this part of the world .