i've read on here a couple times that the uva bulbs lose their heating ability after awhile. just curious, how often should i change the bulb in order to stick to optimum heating in the basking area? mine's still doing okay, i just want to get an idea so i can work out a budget with the turtles.
also, what's a good uvb bulb i can get? can i use one in a regular clamp lamp, or are they only available in tube form?
thanx!

