I added a DSB a little over a month ago. I didn't notice any change in denitrification from this, other than a slowing its build-up.
Well, starting about a week ago, NO3 has been dropping steadily, from 20, to 15, to 10, to just under 10 over the last 10 days or so. Without any PWC's.
I do have a serious cyano problem (all over the substrate and some rocks too). I know cyano lives off NO3.
Is it possible all this cyano is reducing the NO3?
I'm planning a big PWC, but I'm waiting for the 30G of water to come up to tank temp (its been mixing all day/night), at which point I'll vacuum out all the cyano I can.
But I'm wondering, is it possible that the cyano is reducing my 'trates? If so, maybe some sort of "cyano scrubber" would be effective?
Of course, I'd rather think that my DSB has finally kicked in.
Well, starting about a week ago, NO3 has been dropping steadily, from 20, to 15, to 10, to just under 10 over the last 10 days or so. Without any PWC's.
I do have a serious cyano problem (all over the substrate and some rocks too). I know cyano lives off NO3.
Is it possible all this cyano is reducing the NO3?
I'm planning a big PWC, but I'm waiting for the 30G of water to come up to tank temp (its been mixing all day/night), at which point I'll vacuum out all the cyano I can.
But I'm wondering, is it possible that the cyano is reducing my 'trates? If so, maybe some sort of "cyano scrubber" would be effective?
Of course, I'd rather think that my DSB has finally kicked in.