not sure what to do here , they have been under the hps 600 for about a week , still on the 18 / 6 . about to change over to 12 / 12 but this curling has me worried . the temp in the room is about 70 and humidity around 40% , i have been feeding / watering them every other day with sensi grow a and b . i still need to prune the bottoms of them , i'm using fox farm soil .i dont know if i am feeding them too much or what . someone plz comment .
Im going to say high temps. I was having the same problem about 2 weeks ago. I thought my temps were in the 70, but someone suggested I move the thermometer at the canopy level and my real temps were in the 90s. Bingo. Aim your fan(s) toward the canopy.
I'm not sure what is causing your problem, but every other day does seem like a bit much. Always easier too add more water rather than try to take it away.
If those are 5gal plastic pots, you should be watering every 4-5 days. Lift your pots. Feel the weight of them bone dry and after watering. I guarantee that's your problem. It would be a good idea to flush them also.
thx everyone for the input , since this my first time growing i'm worried about flushing since i have never done it but i think i will try on a few of them and see what happens also its hard for me to believe that i am over feeding them because when i mix up my nutes i use the sensi grow A 16mil in a gallon of water then add another gallon and mix in sensi grow B 16mil and then i basically split the 2 gallon mix into 6 , since i only have 6 plants to feed . please understand i went into this not knowing shit and still dont lol anyway i am using a 2 gallon mix on 6 plants in 5 gallon pots every 2 to 3 days so to me i believe i dont feed them enough but again i have no clue what i am doing
That maybe your problem right there! I have heard on a you tube page that you can't mix part a and b together in a lot of two step formulas.
well i trimmed up the bottoms and only watered them last night . still not looking good , temp is 89 and humidity is 33%
thats what i am thinking , i moved my temp gauge up higher and this morning it read 89 so this past week when it said 70 it really was around 90 . i hope i didnt screw this plants up