Carb problems?

Did you recently get fuel before this happened?
I got fuel two weeks ago, I have used about one third of a tank, I go to the same station every time. It's 92 octane with no ethanol. However, I have an inline gas filter that's in glass and I noticed a few black specs in there and the fuel seemed to be clearer than usual. I'm going to pull that out and flush it clean as a starting point. Then, to the carb thanks!