Hello everyone,
I have this nitrates in tap water problem, Nitrates refuses to decrease inspite of several water changes and live plants like pothos, duck weed floating plant and hornwort.
As of June 15th, 2022,
High range PH: 7.4 ppm
Ammonia: 0 ppm
Nitrites: 0 ppm
Nitrates: 40 - 80 ppm...