I have a 10 gallon freshwater tank that I've been cycling (no fish are in the tank). The water has been perfect (0 ammonia, 0 nitrite but 40 nitrate) for the past week. Yesterday, I did a 50% water change out just to see if I could get the nitrate down I added some new plants and put them down into the gravel along with some plant tabs. I also changed to a new light-a Finnex LED for the plants. Today, my nitrate is up (.25), ammonia is still ) and my nitrate is 20 (which makes me happy). It the nitrite increase due to stirring up the gravel yesterday (adding the plant tabs and planting 8 plants)? Do I need to do anything or just retest tomorrow? Thanks!!