To add some trates, try over feeding a little. I would even recommend passing on the water change this weekend. Sdont turn the skimmer off though.
I started dosing vinager to lower the nitrates a little, not to completely remove all nitrates. I did it more to lower it from the 20ppm because the big rock under the purple/green chalice was getting small strands of hair algea. I used to do water changes weekly and I actual had a nutrient poor system, so I stopped. To be honest(I don't recommend) I do a water change when ever I actual do maintence on the tank.(3-6 months) I dose the the weekly stuff every Sunday but no WC's.
I started dosing vinager to lower the nitrates a little, not to completely remove all nitrates. I did it more to lower it from the 20ppm because the big rock under the purple/green chalice was getting small strands of hair algea. I used to do water changes weekly and I actual had a nutrient poor system, so I stopped. To be honest(I don't recommend) I do a water change when ever I actual do maintence on the tank.(3-6 months) I dose the the weekly stuff every Sunday but no WC's.