no adding stuff to the res will only raise ur ppm more messing up ur correct nute reading
the only thing i would add is h2o2 for sterileness and extra dissolved oxygen in the water
30ml per gal with scheduled nutes
thats it
hope i was helpful
a way to check if u r over feedind ur plant is to ckeck ppm...wait and check it again a day later....if its higher then ur plants r drinking more water then nutes and u need to add water...if its lower then u need to add more nute solution raising it back up...when it doesnt flucuate the plant is feeding like it is supposed to
that sounds like ur only prob cuz everything else sounds fine
leave arent curling at all just going slightly yellow at the tops of the plant
...ive a feeling the ph is a little low
doimg one trayamerican dream the other pure power plant and some blue cheese
hi thamks mate im flood and draing ph is about 5.5 to 5.8 just using drop kit at the mo but have a digi coming this week for ph..im using blue lab truncheon for pppm and thats at 850 at the mo
hi mate my tops of my plants are going slightly yellow after 2 days under an air cooled tube its a 600w hps im using and extraction is 150 rvk...just wondering do you think is it heat or ph problems or neuts