Got par readings today. 1st set is BRS 100% with 70% whites at 9 inches mount height. 2nd set is BRS 90% with 50% whites at 9 inches mount height. It's crazy how bright the sand areas are from the glass reflections.
Alkalinity strangely started rising despite that I’ve stopped dosing and is hovering at about 9.0 Switched to TM Pro Reef to try and run lower alk since the tank wants to be ultra low nutrient. Been dosing Plus-NP to try and bring nutrients up a bit for the corals. I also gave up on dosing inorganic P since it was just feeding phosphates into my sand and wasn’t remaining in the water column.
I have no idea why, but tank is growing SPS with no cal/alk dosing right now and parameters are not falling. Coasting on water changes only.
I liked the idea of TM Plus-NP but corals have been starving and my PC rainbow started losing color again. Going to have to go back to Neo-phos. Alkalinity consumption has pretty much dragged to a halt since I made the switch about 2 weeks ago. Still seen some growth though.