Thanks...i love these boas, there just 2 cool..And by the way good fixture...Dums loves backheat...I use a sunglow 100watt for daylight hours (10-12) and a 100 watt ceramic heater 24/7..Temps on hot is 88-90 and on cool is 78 -80 and night is 80-82 on hot and 75 on cool...=75gtank

