Hello, I have recently purchased a heating pad for my plastic tub, A hygrometer and a thermostat too. At first, I had a big bowl of water in the tub but when I placed the the hygrometer in the tub, away from the water, it used to give me humidity values of 80-90% which I assume is wrong. So I placed it with a smaller bowl, now I've got around 50 - 60%. My problem now is with the heating pad, I placed it under the tank for a day and noticed that it didn't get warm enough so I placed it in the tub instead, I got an under pads that are used for the bed (mostly for old people) as a substrate. It gets warm enough but the temperature in the tub still says 26 degrees C max in the warm side. Never above that. Sometimes 23 or 21. Any idea on how I could increase it?