Ingy
Aquarium Advice Addict
Well, I've taken some drastic measures. I have removed over 1/2 my live rock and put it into a separate container to 'cure'. Just a heater and a small circ pump to keep the water moving in the garbage can. A tight lid should keep the light out and hopefully in a couple weeks the algae will be gone.
I checked the levels in my fresh water change water as I was suspecting the new salt (FluvalSea) might be part of my problem. dKH was fine at 9.8, and pH is still running at 8.3. BUT, magnesium in the new water is only 1200ppm. So that is why I have had a hard time raising it up. Calcium is at 450ppm, and those 2 things might be the root of my Alk problems. In my tank, even with Mag dosing, I've struggled to get over 1400 and have increased my doses. Low Mag and high calcium (I don't dose that at all) have probably caused excessive calcium carbonate precipitation, lowering Alk.
But, despite my low Alk, my pH is still at about 8.3, so I am not sure if that is the root of the algae. But I am still heavily dosing it and my corals are looking better.
Latest tank levels are Alk - 9.1 and pH 8.17. Mag is only 1320 (grr).
Love the feedback, keep it coming.
I checked the levels in my fresh water change water as I was suspecting the new salt (FluvalSea) might be part of my problem. dKH was fine at 9.8, and pH is still running at 8.3. BUT, magnesium in the new water is only 1200ppm. So that is why I have had a hard time raising it up. Calcium is at 450ppm, and those 2 things might be the root of my Alk problems. In my tank, even with Mag dosing, I've struggled to get over 1400 and have increased my doses. Low Mag and high calcium (I don't dose that at all) have probably caused excessive calcium carbonate precipitation, lowering Alk.
But, despite my low Alk, my pH is still at about 8.3, so I am not sure if that is the root of the algae. But I am still heavily dosing it and my corals are looking better.
Latest tank levels are Alk - 9.1 and pH 8.17. Mag is only 1320 (grr).
Love the feedback, keep it coming.