I'm helping a friend with a 180gal tank that he just acquired. The package came with an Angstrom 2537 UV
sterilizer. All equipment is more than 3 yrs old. I'm just going to assume that the bulb needs replaced (unless there's a way to tell?).
From what I read HERE,
the 8wt bulb seems to be the one I'll need.
Other than replacing the bulb, what else do I need to look/check for to make sure that the whole UV
unit is going to be functional? What is the function of the quartz sleeve and would it need replaced as well?
Not having experience with a UV
sterilizer, any other advice that I need to be aware of?