I'm on week 3 of my Dr Tim's BPs on a heavily stocked 75g with 29g sump. I started with 1/4 cup, added another 1/4 cup 2 weeks later. I will repeat this 2 more times to reach the recommended dose.
My nitrates have always been an issue, even with a strict 15g WC every week. I believe it to be my DSB and aquascaping that cause the issues. My gobies are always digging new burrows, thus negating the point of a DSB. I still run carbon and GFO.
No cloudiness has occurred, skimmer production has increased and no problems with any corals to date (softies, LPS, SPS).
Levels at start of regimen:
No3: 50
Po4: .08
I'll let you know how they do in a few more weeks.
Rob
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