Anyone using nitraguard biocubes?

[asylumdown]

My experience with algae is that you can't get rid of it with nutrient reduction alone. Prevent it maybe, slow it down for sure, but actually killing it would require a nutrient reduction so severe I doubt your corals would survive. You'd need to pair it with some other control technique, be that manual removal, a predator, or an algicide. I've noticed a marked decrease in the rate the algae I do have is growing, but the hair algae that's invaded the dead coral skeletons I put in my sump (away from my hungry rabbit fish) certainly isn't receding.

Mind you, it's only been two weeks.

I'm also assisting it with phozdown. Phosphates were testing as high as 0.8ppm after I stopped using gfo, and I've been veeeeeery slowly bringing that down with phozdown. Interestingly, the rate it was falling was almost imperceptible as I'm freaked about ODing it so wasn't adding much every day, but within a week of adding the cubes it went from 0.08 to 0.00, and I decreased the amount of phozdown I dosed per day twice in that time.