I have a new tank that is cycling (despite using 100% water, excess plants and a "seeded" sponge filter from an established tank). I'm now in the nitrites through the roof phase. I am dosing Seachem phosphate, potassium, excel and trace as well as CO2 from pressurized system. I am NOT yet dosing NO3 (nitrate). Am I correct that the plants can draw off the nitrites and that there is no need to dose NO3 (nitrate) until the tank finishes cycling?