So my XP3 has been running for around a week but I noticed there are some black spots on the inside of the tubings now...
And it looks gross..
At first I thought it was some air bubbles but they wouldn't move so...
Any idea what is is and how to get rid of it?
Oh and I read that the tubings get black or something overtime, but how do I prevent/cure that?
And it looks gross..
At first I thought it was some air bubbles but they wouldn't move so...
Any idea what is is and how to get rid of it?
Oh and I read that the tubings get black or something overtime, but how do I prevent/cure that?

. I found that if you leave it to long it does restrict the flow and tends to get loose and pushed back into your tank when you move the lines during cleaning and what not
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