Eclectic Elle
Keeper Of The Jars of Joy
So how do you deal with it when the plants get their roots down into the res? Just drain as much as you can, or tilt it, or take the plants off and risk damaging the roots?Bit late to the party, no updates! Like sang said, you can top up but, best practise, drain and refill. You cant tell what makes up the solution in the res, the ec will only tell you how concentrated it is. If your plants are hungry for certain nutes, constant topping up will allow that nute to deplete whilst others build up resulting in lockout.