Along with 1/4 strength AN 3 part ph perfect I'm also adding 1/4 strength
calmag. My understanding is you don't need it but it won't hurt.
How old are they? Not sure, 6 to 7 nodes, my fourth day.
Spots on big fan leaves? Yes
At bottom or top? All over but only a single leaf per plant and only half of them have it.
Any other deformities? Same leaf as spot has some fingers turning out but not twisting.
Water temp? 67 to 68 regulated by room temp.
At middle of nite water temp? Not sure but I assume around 60. There's an 8 degree swing in room temps so I assume that holds true at night. I'm picking up a heater tomorrow though so no more swings.
U build your system? Yes
How much air you pushing? 2 commercial air pumps at a total of 180L/min for 9 outlets.
And them pics..
Included is a diagram of my system so you get a better idea. Using completely inert aquarium bio balls for the medium. Had a tough time with my ph on the first grow and I attributed to the hydroton. From some research I've done it seems the quality of hydroton has seemed to decline?
Each bucket has an air stone and a 180 degree sprayer. Water level at bottom of net with bubbles and sprayer indirectly watering roots. I just noticed the water was a little high so there may have been some over watering. 5" net cups with a layer of medium underneath the 2" rockwool cube and covering it with lids over that.
I just noticed some very small sections of pm and I've been treating it yesterday and today with water and Apple cider vinegar. Neem spray will be here on Monday.
I shared some grow room photos to give you a better all around understanding of the environment.
These are the only leaves out of eight plants there are only 4. What appears to be nut burn on the tips of some leaves where there when I got them.