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Chrondocious said:
Honestly bro, it looks like there was some rot on the base of the trunk. The roots look good though, but to me looks a little soggy. Idk though, ive never grown dwc.
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You might be right. I wasn't using bacteria like I usually do. The roots were so white that I felt like I didn't need it. I also feel like that stupid plant got way too big in a 3.5 gallon bucket before it started flowering. I never let my plants get that big. I feel like those roots were just choking themselves by the time it was over. I haven't grown an autoflower in years and when I did grow them they never got anywhere near that size. I probably wouldn't grow one again unless it was outside in the ground.
 
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I L G M GSC Extreme Feminized

Plant type 80% indica 20% sativa
THC Up to 21%
CBD Insignificant amount
Difficulty Moderate
Climate Indoors | Mediterranean | Steppe
Plant size Average
Vegetative stage 4 to 8 weeks
Flowering time 7 to 10 weeks
Yields 21 oz per plant
Taste and Smell Diesel | Earthy | Herbal | Lemon | Pungent | Skunky | Spicy | Sweet
Effects Create | Euphoric | Happy | Relaxed | Uplifted
 






FLOWER: WEEK 3

Average PAR: 548 μmols/M²/sec @ 12/12
Veg+Bloom @ EC 1.84

High temps, Low humidity, and Yellowing leaves.

The good news is that the new light has no problem reaching an average PAR of over 1300 at 80% power which is a great deal beyond what is needed in this tent. The bad news is I am experiencing high temps of 85F at 800 PAR which is what is optimal for flowering without C02.
Also, my humidifier cannot keep up with the exhaust leaving my humidity levels in the low 30% range.
I have to fix this and I'm not buying a portable ac unit for a 2X4 tent.
First, I connected the exhaust to a continuous repeating timer, and set to 5 minutes on every 10 minutes to exhaust the air from the tent. I then set my humidifier to 60%. Next, I lowered the lights to 12 inches from the canopy, and adjusted to 35% which gives an Avg PAR of 548. It's the bare minimum for a plant in flower.
Temps are down to 79-80 and humidity is at 61%​



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RETRIX said:
The bad news is I am experiencing high temps of 85F
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85F is fine for a high.
RETRIX said:
Next, I lowered the lights to 12 inches from the canopy, and adjusted to 35% which gives an Avg PAR of 548. It's the bare minimum for a plant in flower.
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I know you know this but 548 at the canopy with the light 12" up is probably 350 below the net. I'd say raise the light and turn it up for penetration and don't worry about the 85º thing.
 
I don't know Shed. I'm starting to think that I may have root rot again. The PH keeps climbing everyday and the leaves are continuing to turn yellow. It really sucks because the reason I am doing Hydro is because all of the places that I get soil from where I live store the soil outside and it is always infested with fungus gnats. I Feel like I keep waiting too long to flip to flower and the roots just choke up the bucket. As far as 85F temps go, I'm sure it would be fine if I could keep the humidity up, but I also live in an area where it is a constant struggle to keep it up. Most people have issues with too much, I have issues where it is never enough. So it always drops to the 30s and then the plant stops drinking and you know how it goes. I'm going to try and get this plant to the end and then I have to reconsider my grow medium.
 
I have two thoughts: mosquito dunks will eliminate fungus gnats in your soil in a week and keep them away. Here's the method I recommend from @Carcass:

Mosquito dunks in a 5 gallon bucket of plain water. Leave them for 24 hours to fill the water with good bacteria and then use it to water your plants and mix your nutes. Keep adding water to the bucket and the bacteria will multiply and replace the ones you take out, so you won't need more dunks for a couple of weeks.

...and Vick's Vaporizer for under $20 will keep your RH up as high as 100% if you leave it on long enough!
 
The Mosquito dunks sounds very intriguing as I have found nothing else short of spraying actual bug killer works on them. Now as far as the vaporizor, I do have another humidifier that does mist which does work very well, except I have to use distilled water or it leaves white powder caking up on my components. I have seriously considered either a RO filter, or a countertop distiller. I have read that the RO filter won't take out enough minerals to stop the white powder. The distiller has it's own issues. I bought the biggest wicked humidifier that Vornado makes and it helps somewhat, but not enough in the summer due to the central air. In the winter it's not so bad because I can keep the tent closed and regulate the air exchange to keep the humidity up.
 
Vick's Vaporizer is pure steam. All the white stuff is left in the res. A little vinegar will clean that up easy peasy when it builds up.
 
FLOWER: WEEK 3
Root rot takes us down once again.

So I was about to change the rez and I decided to have a look at this suspect looking trunk on the plant and sure enough the entire trunk was rotted off once again.

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So at least I have learned the error of my ways. First, 3.5 gallon buckets are too small for dwc in my opinion. And second, I was filling the small bucket too high and the crown of the plant was sitting in water constantly with no way for any air to get to it due to the hydroton. It's interesting that I haven't had this problem before. Or maybe I was getting lucky?

Anyway, I have to get this right because I have far too much invested in a hydro set up at this point. So with that, I will restart this damn thing for a 3rd time, but with 7 Gallon buckets instead of 3.5G. This way there will be more room for the root ball and nutrient solution to sit lower and the top of the net pot can sit above it.
 
Oof...sorry that happened twice!

I think the water level is supposed to be at least an inch below the net pot in DWC. The airstone creates bubbles that pop and keep the very top roots moist.
 


I was setting up the bucket for this 3rd try and discovered that one of my airlines had been caught under the bucket blocking the airflow. The air pump was not putting out much air. I took it apart and discovered that I had blown a hole in one of the diaphragms and there was a small split in the second one.
It's no wonder I was getting root rot. I guess I was getting away with overfilling the rez because normally the pump is so powerful that it pushes air all the way to the top of the net cup.

So I switched out to another Hygger HG-946 and measured to an inch below the net cup and marked the bucket so that this rookie mistake is never again repeated. This leaves me with a little under 6 inches for the nutrient solution. This is probably why I've been over filling the bucket, trying to grow plants bigger than the design will allow.
So this time, If you all will suffer through this a third time LOL, things will probably be different.

So on with it then.


Average PAR: 147 μmols/M²/sec @ 18/6
Veg+Bloom @ EC 0.45

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:goodluck:

Maybe @West Hippie would be a good person to bring in for DWC advice since (whether he'll admit it or not) he is a DWC god. :)
 
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