The nutrients are fine. You do need a way to know what the Ph is and what the TDS is of the nutrients you are feeding the plants.

TDS is Total Dissolved Solids it is typically expressed in parts per million (ppm). It is a measurement of mass and determined by weighing A solution of nutrients dissolved in water at a strength of 700 ppm means that there are 700 milligrams if dissolved solids present for every liter of water. A good combo pen is a must for growing healthy plants. You need to know what the Ph is and what level of nutrient balance you are feeding your plants.