Hello,
Recently upgraded from 150L to 250L.
Nitrate running around 8.3ppm for a year, PO4 at 0.1ppm
New sand was rinsed with tap water and caused PO4 to increase to 0.69ppm which has been gradually reducing with GFO.
Silicate introduced from tap water rinse of sand has caused what I think is a large diatom bloom.
As a result my nitrate levels have been gradually crashing down to 0ppm.
I’ve been dosing 2ppm a day of nitrate and it is still falling. I have more fish and feed heavy. I’ve turned my skimmer down to just aerate the water and I’ve disconnected my mechanical filtration.
What do I need to do to resolve the issue?
My biggest concern is I crash and get dinos
Recently upgraded from 150L to 250L.
Nitrate running around 8.3ppm for a year, PO4 at 0.1ppm
New sand was rinsed with tap water and caused PO4 to increase to 0.69ppm which has been gradually reducing with GFO.
Silicate introduced from tap water rinse of sand has caused what I think is a large diatom bloom.
As a result my nitrate levels have been gradually crashing down to 0ppm.
I’ve been dosing 2ppm a day of nitrate and it is still falling. I have more fish and feed heavy. I’ve turned my skimmer down to just aerate the water and I’ve disconnected my mechanical filtration.
What do I need to do to resolve the issue?
My biggest concern is I crash and get dinos