Try shocking it up to about 15ppm and see if that helps. But, you cannot shock with your SWCG. Just turn it off for now and save your cell life and use bleach.
Re: Dealing with black algae, what chlorine levels now from Best Guess Chart?
Try shocking it up to about 15ppm and see if that helps. But, you cannot shock with your SWCG. Just turn it off for now and save your cell life and use bleach.
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