Well, Algae turf scrubber has my phosphates below .00 time to take off a couple of hours of light to it. Got a couple montiporas the encrusting ones so far so good . And a pulsating xenia must be in a good spot he is pulsating like crazy. 12 zoas growing good . My alkalinity has gone from 10 to 7.6 . Will a ats drop alkalinity. Other than very low nutrients everything seams good .