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- Jul 9, 2018
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One of my tanks has a weird Alk issue.
It keeps going up all by itself.
It's a 10 gallon aio.
No skimmer.
Test at 9.8 dKh
Two weeks later, water change.
Test at 9.4 dKh.
Two weeks later, no water change.
Test at 9.9 dKh.
I DO dose NaNO3 to keep nitrates up.
Over the last few weeks I raised nitrates to 10 ppm
Last test they were slightly below 5 ppm.
Is this a case of bacteria processing nitrates and returning Alk back into the water?
I'm really puzzled.
I'm not dosing anything.
My ATO if filled with zero TDS RODI.
My fresh salt mix water tests at 8.something dKH.
J.
It keeps going up all by itself.
It's a 10 gallon aio.
No skimmer.
Test at 9.8 dKh
Two weeks later, water change.
Test at 9.4 dKh.
Two weeks later, no water change.
Test at 9.9 dKh.
I DO dose NaNO3 to keep nitrates up.
Over the last few weeks I raised nitrates to 10 ppm
Last test they were slightly below 5 ppm.
Is this a case of bacteria processing nitrates and returning Alk back into the water?
I'm really puzzled.
I'm not dosing anything.
My ATO if filled with zero TDS RODI.
My fresh salt mix water tests at 8.something dKH.
J.