Hello, I am a fairly inexperienced grower new to hydroponics and I'm experiencing some sort of burn or deficiency and could really use some help. Im in week 3 currently growing Deadhead OG in a recirculating DWC setup with my plant tub being a 17.5 gallon tote and my resevoir being a 5 gallon bucket. I use the General Hydroponics Flora-trio with Cal/mag to supplement and Nuke Em for pest/fungi control. I have a 180gph pump circulating the water at all times and 2 12" air stones for aeration. I have consistently kept my pH at 5.5-6 and my room temp steadily stays at around 72. I use a 300w LED approx. 18" away from the canopy and I typically veg for 2-3 weeks and then flower for quicker 60-70 day yields. I flipped them to 12/12 light at week 3 but my issue began earlier. At week 2 I implemented a pretty heavy feeding program and within days saw what I assumed to be nute burn. I immediately flushed the system and replaced all the water with only minimal nutrients to try and fix the issue. Today I noticed that some of the new growth is showing signs of the same issue. Is this possibly still nute burn from what the plants had already taken up before the water change? Or do I have a deficiency/toxicity here? I dose very lightly with Cal/mag because I use tap water that I de-chlorinate that I assumed had a decent amount of calcium so my first thought was possibly calcium deficiency??? But this doesn't resemble typical calcium problems. It more resembles potassium deficiency in my opinion but being new to hydro I felt I better seek expert advice. PLEASE HELP!! Thank you in advance.
HELP! Week 3 of hydro grow and somethings wrong!!
- Thread starter cycocap
- Start date
TheSadBadGrower
Well-Known Member
Those plants are tiny for that age. With nutrients, less is always more. This is my first DWC grow and she is only 3 weeks old in this pic. Evevn if you fix the problem, damaged leaves wont recover. Start with a clean res and feed about 25% of the rec dosage for right now. Let that run for a couple days. Keep PH around 5.9-6.1
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Well thank you for your input thesadbadgrower but I have to say I think there is a miscommunication here. I do agree that my plants could probably be bigger but for 3 weeks out of seed I dont think they are that far off. I may be inexperienced with growing but I am not inexperienced when it comes to cannabis in general. I work at a cannabis farm where, obviously, the best of all possible materials and methods are used and, I have never in my life seen a plant that size 3 weeks out of the seed. I have never seen a plant that large even 3 weeks out of the cloner. That being said, I dont mean to say that you are lying but, if that plant was truly just a germinated seed 21 days ago I think myself and alot of other people out there would LOVE to know exactly what the hell you're doing to achieve that much growth in the first 3 weeks after planting.
Aside from that I did do exactly what you said the day I noticed this issue. I completely changed the water and nuted at about 25 percent what I had done initially. Im glad to hear you think its just the remnant of nute burn, that was my assumption as well. Thanks!
Aside from that I did do exactly what you said the day I noticed this issue. I completely changed the water and nuted at about 25 percent what I had done initially. Im glad to hear you think its just the remnant of nute burn, that was my assumption as well. Thanks!
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manfredo
Well-Known Member
I have some considerably bigger than adbadgrower's right now that are less than 4 weeks from seed in an aeroponic unit, feeding GH Flora expert series with Barrone bio IPM program, so it is very possible. The strain makes a huge difference too. I also have some Mass Medical Star Pupils that are smaller at 5 weeks. But yours do seem small a little small OP...72 degrees F is a little cool for a daytime temp in veg...some warmth might help. There should be some variation between day & night temps.
What kind of water are you using? I think they will come around with some love!!
What kind of water are you using? I think they will come around with some love!!
70's natureboy
Well-Known Member
toxicity
Franklinmiller
New Member
nice growing...
TheSadBadGrower
Well-Known Member
Yea this one is GG#4....my first true DWC grow too lol after growing in soil for a while. Talk about a weird jump going from where overwatering will drown your plants to growing in water lol.