I dosed a double dose first day and will do once per 2 weeks
DIY Algae scrubber
- Thread starter jaws7777
- Start date
Sounds cool. Can you post pics describing how you set it up. Are you using strictly bio pellets ?
J
jaws7777
Angelphish
kno4te
How much lower are your nitrate levels since you started using de*nitrate? I believe it lowered the nitrate by ~20 ppm after a week for J jaws7777 in his 300 gallon with 125 sump?
Please post your tank size (and sump size if used) and the weekly nitrate reduction. It would help to have the flowrate through the de*nitrate but I believe most are running around 40 gpH.
I'm trying to figure out how much of the nitrate reduction could result from denitrifying bacteria converting nitrate into nitrogen gas and how much is resuling from adsorbtion of de*nitrate or modified pumice.
Angelphish
kno4te
How much lower are your nitrate levels since you started using de*nitrate? I believe it lowered the nitrate by ~20 ppm after a week for J jaws7777 in his 300 gallon with 125 sump?
Please post your tank size (and sump size if used) and the weekly nitrate reduction. It would help to have the flowrate through the de*nitrate but I believe most are running around 40 gpH.
I'm trying to figure out how much of the nitrate reduction could result from denitrifying bacteria converting nitrate into nitrogen gas and how much is resuling from adsorbtion of de*nitrate or modified pumice.
If the pump is 40gph you're likely only getting 20-30gph out of it.
I think ur right. Never measured it but I kind of figured if there is a drop then it should still keep me in that flow range.
Im not to sure it was because of the denitrate and not the reduced feedingsJ jaws7777
How much lower are your nitrate levels since you started using de*nitrate? I believe it lowered the nitrate by ~20 ppm after a week for J jaws7777 in his 300 gallon with 125 sump?
Please post your tank size (and sump size if used) and the weekly nitrate reduction. It would help to have the flowrate through the de*nitrate but I believe most are running around 40 gpH.
I'm trying to figure out how much of the nitrate reduction could result from denitrifying bacteria converting nitrate into nitrogen gas and how much is resuling from adsorbtion of de*nitrate or modified pumice.
I forgot to ask about nitrate accumulation ... how much nitrate would rise after a week without a water change (before the de*nitrate).
But I think 20 ppm nitrate reduction in a 125 gl could be the result of denitrifying bacteria.
The denitrification would take place within the miroporous scructure of the pumice where the flowrates, in theory, should be rougly the same as a regular coil denitrater running at ~0.5 gpH to allow for anoxic conditions.
At 0.5 gpH, ~50% of a 125 gallon tank's nitrate is removed in a week ... effectively a 50% weekly water change ... (9% day 1, 17.5% day 2, ... 49% day 7).
*This is without additional nitrate accumulating throughout the week and it doesn't really factor in the media capacity of the denitrator.
But I think 20 ppm nitrate reduction in a 125 gl could be the result of denitrifying bacteria.
The denitrification would take place within the miroporous scructure of the pumice where the flowrates, in theory, should be rougly the same as a regular coil denitrater running at ~0.5 gpH to allow for anoxic conditions.
At 0.5 gpH, ~50% of a 125 gallon tank's nitrate is removed in a week ... effectively a 50% weekly water change ... (9% day 1, 17.5% day 2, ... 49% day 7).
*This is without additional nitrate accumulating throughout the week and it doesn't really factor in the media capacity of the denitrator.
For me its red maybe 40ppm between a 1 week wc less if i do multiple.
Right now i have it set at 21gph. Figure it should cycle the tank over a 20 hr period. Sent seachem an email regarding flow rates
I stopped dosing ridx not knowing if it would impact the anerobic bb....thoughts ? Rd said he wasnt sure
