I have a 120 gallon tank with 2 wpg and a low fish load. I'm about to get it started with some plants. After consulting with various people, I have bought Potassium Nitrate (KNO3), Mono Potassium Phosphate (MKP) and CSM+B Plantex. I was told to dose the KNO3 and MKP on day one, CSM+B on day two...