I get an increase of phosphates but not nitrates, this was when Iw as feeding like 3x a week in the beginning. This bump was huge like .4 phosphate in a week. Now I just feed 1x a week with no ill effects, I manage it with Phosphate RX.
My phosphates have slowly increased and after testing last night 0.261 ppm phosphates
Tested with Hanna phosphorus and converted using their conversion chart .
having 0 nitrates I have been dosing roids every other day in addition to seaweed and pellet food with only raising phosphates .