then in this case, its okay.
When your NO2 goes to zero, NO3 when spike, you need to conduct WC to reduce it. At this moment, your cycling has more or less completed.
Most fishes can take slightly higher NO3 levels, most corals LPS can tolerate also. SPS for sure no.
Adopt moderate feeding to control NO3 and PO4, do not introduce more LS at this point till both NO3 n PO4 levels are reduced and controlled.
Try to add LS the most one per week and monitor the same.
Have fun