So I went to a reptile expo this weekend and left the roommate to take care of the frogs. come home to find one dead, and the other clinging onto life. Lost her ten minutes later. I love reptiles, and I absolutely love these guys. I SPOIL them.(bought a mister, coco husk, and moss mat to put in the enclosure from the Expo)

More or less I would like to narrow down what cause them to die. The water dish was bone dry. I'm just curious as to wether this could have been the cause as I was gone Friday aft back Sunday night, dish had water Friday.

Before you flame, YES I change the water daily. Exo-terra 18x18x24".
I typically keep the humidity around 70-80%. UTH to help keep the temp around 80F. Feed about every two to three days(there were crickets in there when I left). Substrate is bark with moss on top to retain moisture.

My thoughts are dehydration, humidity was down to 40. She says she misted it once saturday but didn't notice the dish empty. How long will they last with no water?