Hello everyone, so to begin with this question, I have been dealing with some kind of algae for a couple of weeks, I think it's diatoms because it's brown and dusty (the pics looks green but Its definitely brown when I'm up close), but my LFS says it may be a film algae of some sorts that shouldn't harm the fish. So they recommended a UV Sterilizer that can help bring down the bloom I have. I have done some research on them and kind of understand how they work. So my question is, what would y'all recommend for UV Sterilizers to put in my first tank? I have a 45G tank thats turning 4 months old later this month. Any tips and advice is much appreciated!
Also here are some pics for what I'm dealing with.
Also here are some pics for what I'm dealing with.