Quote:
Originally Posted by rsucre
Hi, I took new measures:
Nitrate: It is now down to 0.75ppm.
Phosphate: Still at 0ppm both regular sample and a sample taken a few mm from the refugium sandbed.
Coral looking good, algae still very little at the back glass, cyano still growing on the display tank sandbed (no change).
I have maintained the 27ml vinegar daily dose.
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I have found ammonia, or at least a positive test for ammonia, and phosphate in the substrate that is growing cyanobacteria, but the presence of ammonia and phosphate does not necessarily predict cyanobacteria mat formation. There might be cyanobacteria growing on the substrate, just not enough to see without a microscope. Still trying to figure this out and will be following your reports.