How long have you had your skimmer? What size tank? How many fish? Do you get a dark skimmate or tea grean?
I've had the skimmer for almost a year now. I have a 90g with a 50g sump. Fish = 3 cardinals, 1 tang, 1 foxface, 1 copperband. I have about 100lbs LR. My skimmate is tea green as I have...