RDWC HELP!

Hey all, first off pleasure to be a part of this community! I started my first ever RDWC grow about 3 weeks ago. Everything has been going great and the growth is still crazy progress, I just notice these brown spots on one of my plants and I’m not sure how to handle it or what may be the cause? Let me outline everything below.


- Doing 2 RDWC pots with one reservoir outside the tent, all 5 gallon buckets.

- My setup is a 4x2x5’ tent. Two Oscillating fans, one de humidifier, one online duct fan with a carbon filter exhaust (6”). An VIVOSUN aero light 200W LED. Two air pumps (one for each grow bucket) with a 9” stone constantly blowing bubbles. I also have a water chiller that keeps the water 68F 24/7.

- Humidity stays below 50%.

- Tent temp when the lights are on is average 78-80F. Tent Temp when light is off is average 74F.

- My PH levels stay right around 5.8 the best I can, I use RO water and PH up or down as needed.

- For nutrients I am using GH Flora Series Trio. Micro, Grow and Bloom. I add even amounts as directed by label for the stage I’m in until the ppm registers at the right amount needed. I give it an hour in between testing for them to mix.

- I also am using HydroGaurd as recommended per Gal. (2ml)

- Lastly I also use CALiMAGic 1-0-0 as recommended on the back. (1 TSP. per GAL)

- I check my nutrients, water levels/temps and PH daily.




- Both seeds started germinated 15 days ago. Used a humidity dome, heating pad and the tent light.

- transferred both of them to the DWC pots on the end of the 4th day when roots were coming through the bottom of the rapid rooter.

- once they were transferred my light was set at 30” above and on a 18hr on/ 6 hour off schedule (manufacturer recommended) . Nutrients for the seedling I kept between 500-600ppm.

- About 4 days ago (12 days since germination start) they had the proper fingers that I believed it was the start of the veg stage.

- I lowered the light to 20” as recommended by manufacturer for veg stage. I kept the light schedule at 18 hours on/ 6 hours off as it still is now. The light is at 70% because I saw the brown and wasn’t sure if it was from a burn so I’m slowly working it up to 90%. I upped the nutrients to 700ppm to slowly bring it to 800-900ppm as recommended for veg stage. I haven’t added anymore nutrients since then because I’m not sure if the issue is nutrient burn by my upping it and throwing them into it all so fast? The nutrients are at 600ppm as of today.

- my medium is clay pellets.

- one strain is Gorilla Glue, the other is Blue dream. The gorilla glue is the one having the problems with the spots.
 
Why do you have 50% humidity in veg?

That looks like they are really hot and are over transpiring gushing its called or something like that.plant send a lot of water out of its leafs and it makes those blisters because the pressure destroys the leaf.
Try to raise your humidity or make your lamp less powerfull.look at what your vpd is now
 
Why do you have 50% humidity in veg?

That looks like they are really hot and are over transpiring gushing its called or something like that.plant send a lot of water out of its leafs and it makes those blisters because the pressure destroys the leaf.
Try to raise your humidity or make your lamp less powerfull.look at what your vpd is now

I was told around 50% for veg but i see some saying 50-70% so i will unplug the dehumidifier, the VPD has been sitting right between 1.4. Is that what you think is the issue here?
 
I beleve soo.i had plants the same way they recovered as they have grown bigger( i have no humidity control but bigger plants produce wetter enviorment especialy in hydro
 
Back
Top