My water was the same way. Im running into this tip burn on both sides. My ph in the dwc's run 5.5-5.65 ppm is a conversion of .74 from my ec meter at 375ppm (hanana) Its hard to get a good tell on these plants. I keep building new rooms and adding better equipment. To be honest its not really a problem. Im just adapting to it for the time being. I keep thinking once the rooms r done i can focus on the why's?
Now if it was ruining crops i would be going crazy. Actually now that im thinking about it. I bet its a trace mineral problem. Gonna give that a shot.
View attachment 1873005View attachment 1873006Im pretty happy with scrog. I really find more joy in it than growing traditional. Got everything dialed into pulling a plant every 2 weeks. Pretty sick. I just finished the new veg tent. Its not finished by far so dont beat me down over it. I built it to accept my old 400 and used the left over 3 ft of rail to make it work. Just need to pick up the motor and i can install it.
View attachment 1873007 final dimensions r 5.5ft by 5 ft H 3 ft D. Cost 61 dollars by the time i finish the entrance.
After a better look at your leaves (hard to see but i get the picture) when I have had leaf burn like that (burnt serrations not just leaf tips) it has been a nutrient issue. I have never had it happen in soil unless I had mild root rot. how wet is your soil when you water? maybe try a higher ph range, soil doesn't mind the low to mid 6's, decomposition in soil can cause alkalinity so if you are giving them water that is in the mid 5's it can drop to the high 4's due to organic matter breaking down. I might even go as far as to flush the system with 6.5 ph and see if you can get the salts out of there. I'm also going to add that less than 400 ppm is like giving plants tap water, they are trying to produce buds and have no place to draw energy from, my water comes out of the tap at about 300 ppm. I have gotten shocked looks from other growers when I tell them that by week 2 of flower my girls are drinking 2k ppm mix, then they come and see my happy, healthy plants and say "dood, I want that shit!". The suggested feeding regimen on most nutrient bottles is less than half of what plants can use to thrive.
These opinions are all "shots in the dark" because I can't literally see your setup but in my experience these are things that may be a factor.
In summation; I hate soil. It's close to impossible to really control your plant's nutrient uptake, every soil compound has different properties and the more I pick over soil grows on these forums the more I see people having nutrient issues and ph problems, I'm not going to bash anyone for growing in soil because I did it for years but as strains become more hybridized they become more sensitive to environment, as an example; I grew a strain once called "original purple haze" (also known as old timers haze) its an older strain with very little crossbreeding in its lineage, I gave it water straight from the tap, no ph and filled with chlorine, it never had any issues, took all its nutes from the soil and finished in about 20 weeks (yes, thats not a typo, 20 weeks almost killed me) its as close to wild as you can get and hearty like an oak tree.
Different strains react differently to the environment, the last 20 years has seen an explosion of 8 week finishes and full 50/50 hybrids, these plants are ideal for seasoned growers because they are designed by seasoned growers. I tend to follow the breeders recommendation whenever available, if they say "this strain likes hydro" it generally means they had issues growing it in soil.
