TLF Phosban Reactor

[Binare]

How you judging your results? Based on visual... Current algae bloom. Or based on test kit results. My hanna meter showed lower po within hours and continued to lower for days until saturation was reached. If its algae, you won't "see" results really until you remove and see a slower or even better no growth rate.

[Binare]

Also if your po is being leached from sand or rock. You'll see no results till either leaching stops... Or slows to below rate of absorbtion. Before you worry about phosphate levels and removing it, I'd worry about the source. Water changes? Water top off? Overfeeding? Frozen foods? Liverock, sand etc.