mound
Aquarium Advice Activist
Hi - I'm in the process of finishing up a fishless cycle..
normally on established tanks, when I do my nitrite tests (the test tube/color kind) I drop the 5drops of reagent into the test tube, and it turns a sky blue immediately (the 0ppm reading), and stays that way (you're supposed to wait 5 minutes before reading the result.)
The tests I'm doing now at the end of my fishless cycle - when I first drop the reagent into the test tube, it immediately turns purple (a high reading) but within the 5 minutes turns to sky-blue (the 0ppm reading)
I'm just curious why this is? Could it be because the Nitrates are extremely high at this point? (I haven't done the end of cycle water change yet and so Nitrate has go to be upwards of 400ppm)
Just curious
normally on established tanks, when I do my nitrite tests (the test tube/color kind) I drop the 5drops of reagent into the test tube, and it turns a sky blue immediately (the 0ppm reading), and stays that way (you're supposed to wait 5 minutes before reading the result.)
The tests I'm doing now at the end of my fishless cycle - when I first drop the reagent into the test tube, it immediately turns purple (a high reading) but within the 5 minutes turns to sky-blue (the 0ppm reading)
I'm just curious why this is? Could it be because the Nitrates are extremely high at this point? (I haven't done the end of cycle water change yet and so Nitrate has go to be upwards of 400ppm)
Just curious