Low humidity is a big one, I like 50%rh at a very minimum and my flower rooms run at abou 70% till the last two weeks of flower..I run veg rooms at 70-80% rh
Ive got the humidty in check at 50% to 60%
Dial back the nutes a bit and then gradually ramp up and run half of what you believe is full stregth...
dropping nutes as we speak.. going down more than half..
R/o water makes trouble shooting way easier in the long run..
Im going to my LGS tomorrow.. to get a R/O filter then ill know exactly what i have going in..
Water temps are little high, 65-68 max is my sweatspot..
i set the chiller a few degrees cooler.
I like to veg 18 on 6 off, better root developement IMO and a more uniform developement between roots and canopy, not a fan of 20 or 24 hour veggin
im thinking about switching my timers to 18-6
No fans directly on the plants, only move the ambiant air indirectly
my fans are over my canopy, or blowing low to high in the room..
130 gallons? what size system do you have?
I have a double barrel XXL16- its the 13 gallon system..
I only use EC numbers when the ppm excedes what my meter will read, conversions and sliding scales seem to work against me, so usually if my reading excededs 2000ppm I switch over to the ec scale but the simple fact that I have to use the EC scale means I have way to much nutes in the system already.
I have zero experience with DM so i can not really say, but lookin at it, it seems like your not using all the different ammendments required for a complete nutrient profile. I mean there is Gold range, Advance, One , and original just in the base nutes ...a ton of foliar feeds, and Add .27, Zone, Max, silica and potash in tank ammendments.....the foliars kick but not as critical in the big scheme of things but the additives are almost essential..I pretty much use everyone in one from or another from other manufactures, all are pretty much needed and since DM offers them as an ammendment my guess is that the base nutes are weak or devoid of some of those items.
I dislike dutch master, had problems with it on my tables when i was running them and went back to GH but everyone seems to have good luck keeping it simple and blowing things up with dutch master!
4k with them lookin like that I would put the lights at the cieling or hibay them till the plants start to turn around
lights are at the ceiling... and i dimmed the ballast to 75%
Tex