Not my first indoor grow but first time with Barney's Alcapulco Gold. Using Fox Farm Ocean and after a month the plants are not thriving and are only about 4" tall. I thought maybe I was over watering (leaves were drooping) but cutting back on watering was of no help. I'm wondering now if it's my tap water. A year ago I had a water softener installed and I'm using potassium chloride. Could that be the problem? If so, can they be saved at this point and if so what would be suggested besides changing to maybe distilled water? Many thanks!