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how the beep beep beep do i get rid of an oil slick at top of tank
so half of the top of my tank has an oil slick on it. it is basically everywhere that isnt rippling. so my question is how the heck do i get rid of it and why is it showing up?
its really starting to get annoying. i dont want to skim it out for it to return. Ideally i want to get to the root of the problem. |