i just purchased pacman a 20 gallon tropical startup kit and three bricks of eco coconut fiber it has a heat lamp and 50 watt day blue light , a zilla heat mat, and a thermometer / barometer. i am having issues with the setup . the humidity will only go as high as 50 and the temp stays around 80 i have tried covering the screen with plastic wrap to bring up the humidity without any results. as a noob i used all three bricks so there is around 8 inches of soil could this be my problem ?