it's summertime, and with the high cost of running my air conditioner and the whole "going green" movement and cutting energy usage, i'm looking for ways to avoid using unneccessary electricity.
so with that in mind, i'm wondering if my red eared slider really needs his uv light. his tank is positioned right in front of a big bay window that gets sunlight about 95% of the day (there's enough sunlight that you can't even tell that the uv light is on). i turned it off a few days ago to see what would happen, and the tank still grew algae so i know that it is getting uv rays... but i don't want to harm the turtle in any way. is the uv light necessary?
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