I've been slamming for 3 weeks and water is clear but can't get rid of these brown spots and such? What is it? How do I get rid of it?
FC: 25
CC: 0
Ph: 7.2
CYA: under 20. I'll bring this up.
FC: 25
CC: 0
Ph: 7.2
CYA: under 20. I'll bring this up.