There is a white "foam" around the filter that accumulated today. What the heck is it and is it bad?
I was thinking maybe a filter change would help.
Thanks in advance.



scripta_elegans wrote:i loved the air stone, and so did the turtles. They pulled it up every single day, and finally, I gave up. I thought Grey Goose had a good idea, and I buried them in rocks on the bottom of the tank, but they dug them out. Now i have the 2 filter outputs agitating the surface of the water to keep the foam/oilslick at bay.



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