I have a beardie and two uros (in two 40 breeders). I'm purchasing MVB's for both tanks (Powersun), but I'm stuck on what kind of bulb...spot or flood. Which is better? I'll probably will purchase stands to hold them so that when I feed during the day...I will not disturb the bulb. Oh, what wattage is better...100 or 160? I'm using a heat bulb that I purchased at Home Depot (125 watt)and it works well.

