M music64 Well-Known Member Jul 19, 2018 #1 i mixed up a concoction of nutrients and i usually get readings of 900+ ppm but this only got 250 ppm. does that mean my nutrients went bad. did have a couple days of over 95 in the room
i mixed up a concoction of nutrients and i usually get readings of 900+ ppm but this only got 250 ppm. does that mean my nutrients went bad. did have a couple days of over 95 in the room
homebrewer Well-Known Member Jul 19, 2018 #2 Freezing is only an issue when they've been stored in cold temps. Try calibrating your pen and measure everything separately.
Freezing is only an issue when they've been stored in cold temps. Try calibrating your pen and measure everything separately.
