I am looking at getting a desk lamp from walmart for lighting in my planted 5 gallon tank. I was wondering what type of bulb to get specifically, and what wattage to look for in a desk lamp to grow low light plants in a 5 gallon tank.
So the bulb itself says 75 watts on the box? How do I know which lamp unit to get? Do I look for one that already has a 20 watt bulb in it that I can replace, or what? For example, will that "75 watt" cf bulb work in a desk lamp that came with a 13 watt lamp inside?