Bahamiangirl
New member
I have these dark spots of algea on some of my rock its like thick Dark brown spots and red ones . I put phosguard in my filter on Saturaday it is getting worse. Thicker on the rock dose it do this before it gets better. My PH was 8.4 and my ALk was it was a lite green color in the middle of the chart it said normal it was like to the top of that 1.7 which is lower then it should be. So what should I do?