pinspot
Well-Known Member
Tell me if I'm wrong here. And if you Know differently, than please explain.
I'm always seeing posts asking about topping off reservoirs, like "should I add nutes and water when I top off".
The way I have always looked at it is, If your topping off with extra nutes, your setting the plants up for possible nute burn.
Even though your topping off to a specific EC/ppm, you have no idea which, or how much of each element the plant had already used, since plants take in different elements from your solution at different times.
So for an example the plants used lots of N, but much less P and K, and your EC/PPM has dropped significantly. Now if you top off with more nutes to get your EC/PPM back up to that magic number. is it not likely that your building up the P and K to toxic levels?
I'm always seeing posts asking about topping off reservoirs, like "should I add nutes and water when I top off".
The way I have always looked at it is, If your topping off with extra nutes, your setting the plants up for possible nute burn.
Even though your topping off to a specific EC/ppm, you have no idea which, or how much of each element the plant had already used, since plants take in different elements from your solution at different times.
So for an example the plants used lots of N, but much less P and K, and your EC/PPM has dropped significantly. Now if you top off with more nutes to get your EC/PPM back up to that magic number. is it not likely that your building up the P and K to toxic levels?