HELP NFT/DWC HYBRID

Dr. Drake227

Well-Known Member
I have been vegging these 6 moms in a container for a while trying to tweak them and get it perfect. I have a mini version of the setup that is in a non air conditioned tent and the room would get up to 86f and water around 84f. I been using bennies in the veg and flower on those plants and they are crushing it! So where these are being vegged they are in ac and I had it running 75f and they looked the same as they do now. I thought well Im having success with bennies at higher temps maybe the higher temps get them going/activated more. So I raised the room temp to 80-82 and water is 80f. I have an ro system that im hooking up in a couple days once I get a pressure reducing valve, tap psi is 97, but after I looked at my city tap report I dont think im locking out calcium or mg with my nutes. Running masterblend 4-18-38 with calnit and mg at 2-2-1 ratio. My tap usually reads from 180 to 240 and I had their res at 550 ppm and the ppms were stagnant with ph rising from 5.5 to 6.2. I was getting some leaf twist on the smallest of the 6 and the larger plants got funky looking new growth on the top branches while all the lowers werent affected badly. I had to readjust several times and now ita pretty stable rises .1 or 2 a day. I lowered ppms to 500 to get them to show they are eating and I started seeing them drop it by 5 ppms a day it dropped to 480 and I wanted to add some more bennies and that brought it back to 500. I need help from the pros that have seen this themselves or came near these problems and has an idea. In the smaller tent with 84f temps has low humidity between 40-50 and the ppms were kept low to see when the small plants ate and never went over 400ppms. Im not sure if Im locking out a nutrient or my plants that look rough need higher ppms? They have some leaves that are really dark like nitrogen tox but I domt have a lot of N I have a lot of potassium in this mix was thinking to possibly use masterblend only for flower after week 4 and use jacks 5-12-26 to veg and early flower. Im not sure what a potassium tox in my environment would look like. It could be heat or light stress running 100 watts of cob over them about 5 inches above. Do I need more wattage or are they too close im not sure. Im stumped and ready to try the RO but I think the biggest thing thats only going to change is ph swings from the bicarbonates. I’ll attach pics and order
 

Dr. Drake227

Well-Known Member
The first two are some trop cookies, next two are gmo. The better leaves are on the lower part of the plant and the tops are sad looking. Roots are roots and the stalks are stalky. I appreciate any help!
 

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Dr. Drake227

Well-Known Member
Water reports and the small tent grow, at week 5 currently and believe all 4 are going to yield great for 10 inch plants at flip this is a platinum at week 5. Never been below 80 degrees and they are coming in great
 

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Keesje

Well-Known Member
I guess people don't even read it.
It is written like a concrete block of text.
Not very inviting to read.
 

Dr. Drake227

Well-Known Member
At high temps, the EC should be lower since the plant is transpiring more to regulate temp.
Thank you Billy, I have since started using ro and started them at 390 ppms to see how they respond And it dropped to 370 in 8 hours so I upped them to 450. It has only been a day since ro swap. I will update on them once they show a reaction on their leaves.
 

Dr. Drake227

Well-Known Member
VPD.
You've made no mention of humidity.
Needs to quite humid at 80F+
Thanks for pointing out I put the small grows humidity that I cant comtrol but not the moms. I have it all controlled in their environment I keep it between 65-70, its usually 68rh. I’ll update in a week or two when the ro has had visual changes as of now they are looking a little better. The ph is stable and only took one squirt of ph down to bring it to 5.8 instead of 12 squirts plus the 5 later after it rises and then 1 every other day. So far ro is making life easier and for the people on the ro vs tap thread saying you CAN use tap in hydro, I say yes but youre gonna be chasing problems I believe. But we shall see in a week
 
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