Hello everyone, thanks for replying so quickly. I appreciate all of your ideas. Had the water tested at an aquarium store and they used adifferent type type tester. It was the same readings.
She specifics of the tank equipment include 60lbs of substrate, coral gravel, a venturi protein skimmer...
I have a 155 gal. bow front glass tank. I have had it up and running for a year now. Everything has been great for the first 10 months . I suddenly have had a severe phosphate spike, up to 2.0, and the best I can get it down to is 1.5 - 1.0. I have completed multiple small water changes, 10 to...
