10 months old, 75gallon mixed reef and fish, 30g sump, 73-74F, Ca 400, pH 8.3, nitrates <10, phosphates 0.04-0.06. Water clear as the blue sky. Using chemipure for 2 days, phosphate remover in a bag for 2 days. Just removed about 1qt (quart) of GHA last weekend.
I have GHA, some white tube...