i got a hogg island boa a couple days ago, spur of the moment deal i could not pass up. i got her in a temporary glass 55 gallon tank with a screen top. my problem is the tank seems not to be retaining heat. the heat all seems to escape out of the top and i've tried putting a heavy towel on top but the non heated side seems to get too chilly. the snake does not feel cold to the touch, but cool. any ideas from those who may have snakes in a glass tank to retain heat.

