yesterday i got my leopard gecko after a month of researching and finding out how to take good care of him. I bought a baby mack snow leopard gecko and he/she is very beautiful and active. I bought everything for him except the thermometer! The thing im worried about is the heating pad. im currently housing him in a medium size tub. The heating pad seems to not be heating alot. When i put my hand over the surface of the tub where the heating pad is under I only feel a small amount of warmth. Is this normal? is the Heating pad defective? or am I just paranoid? the heat pad is a zilla mini 4 watt heating pad.