Well, it goes like this: A plant takes on only so much in nutrients. When you start out at 600ppm and a few days later your nutes are at 700, then obviously the plant is taking all the nutrients it can, and the rest water. Having the ppm higher means its taking more water, and leaving you with the higher ppm. If the reverse happens, the reverse would be true. You can either change out the nutes and start fresh, adding less nutes, or adjust it with water to make it less strong.

keylime