Deficiencies continued through the week. So I calibrated my ph sensor and it was correct. I added 3.25 tsp of raw npk calmag which worked out to about 100 ppm in solution. Over night the plants looked better and the solution had dropped by almost 200 ppm while only losing about 3l of water. I topped up with 75ml
Of bloom, 50 ml of micro and 25 ml grow. I also added 7.5ml of ph down to bring my ph back down to 5.9.
I also didnt realise the I density of the leds could burn the plants so I've raised the light all the way to the top of the tent.
One of my purple haze clones hermed on me so I replaced it with a clone I had on standby
@moeGrow,i know that sativa strains dont like hard feeding ,some take it ok but go easy,just in case ,i see some spots on leafs and some slight burns ,idk cause the light isnt good to distinguish colors if there are problems with the plant,in general a plant needs ph being stable not fluctuating.that can lead to problems
https://www.maximumyield.com/perfecting-ph/2/1212
happy growin
@Blacklisted, I let the ph drift between 5.5 and 6.2 to allow for uptake of nutrients all the way along the range. As they eat it climbs higher, I've also increased their feed to 1.9 EC biggest part if that increase is the magnesium sulfate as they cant seem to get enough. Sativas generally dont like strong nutrients but these girls are pretty happy.