Running carbon in reactor. phosphates have been 0 and trying to increase with more feeding but now wondering if this is eating them up. Or if this is a result of low nutrients also getting 0 growth in algae scrubber
Turn off the reactor and put your skimmer on a timer. Test in again in a couple days and see if that makes a difference.
Do you have a lot of corals or fish?
Do a Google search you will find a thread here and one on RC. Chuck's addiction used to have a section as did 3Reef but I can not find those. A UV might assist in the battle.