I have some cyano that refuse to go away and my nitrates and phosphates are always undetectible on both tests that I have. I had my water tested to be sure by some professionals and same results..undectible. Yet I do have cyano, ID by a microscope.
The cyano seem to be able to survive by making a nutriment reserve, at least from what I have read about it, so even cutting the light might not get it. It's a tough thing to get rid of sometimes.
Quote:
Originally Posted by daveycoopa
You said nitrate was zero but it couldn't have been if you was fiting red algae?  |