My plants needed some calcium&magnesium so i had some water that the ec was at 500 just Ca & mg plus with some sweet grape stuff(cant remember name)20g of water.I wanted to water down my bitches before i fed them(feeding was 740)well i got a run off of over 2000,i watered with nutes right after i watered with the 500ec water.i was so stoned that the 500 ec water was only for watering not feeding,didnt realize what i did till the reading. ANOTHER QUESTION should i be adding Ca Mg plus with my nutes or just watering?i use ro water from jewel water dispenser