Bearded dragons have no size water need. Adult bearded dragons do have a permanently filled, clean water supply where they can drink from. The sweetest drink them falling drops (or drops that unroll their nose). When a bearded Dragon drinking, the head held down and tries to suck the water on the bearded dragon.
A bearded dragon who constantly too often and drink too much water, may have health problems. Please contact a reptile specialist.
Water serves for the fluid balance, hygiene, but also for the pleasure and bathing (see also in bath) have to be done on a regular basis. Lukewarm water can also be stimulating to clogging. Lukewarm water can also be stimulating at clogging (see also diseases). (zie ook ziektes).