I'm sure this is posted somewhere, but can someone explain the difference between the two - and what is the best for my RES? I have a Day Glo Daylight lamp, 50 watt, sitting on top of the screen cover to the tank, along with a heat lamp bulb on the other side. The temperature of the 20 gallon tank says 70. It usually is warmer, but with the cold weather we've been having, the inside air is a bit cooler.
Is the UVA bulb for basking, ok? He's been basking for hours at a time. From the time I turn the light on in the am, until I turn it off at night, he basks out of the water. Is this normal?
Thx!

