4inch PVC Aero/NFT 4x5 SCROG (1200Watts)
- Thread starter 420fied
- Start date
We may have a problem. I initially thought the plants were suffering from nute burn although my PPM has never been over 470. I think I have some sort of deficiency and considering that this is my first hydro grow, I'm not sure what it may be. I've taken some good pictures of the condition and would appreciate any feedback on a fix.
I actually recalibrated my ph meter this morning and it was off. It should have read 4.0 when submerged in the 4.0 solution but it read 4.5 so I fixed that.
I think my ph was too low and it has caused a deficiency.
I do not think this is nute burn. For the last 4 days I've ran them at 300 PPM.
This condition is on all plants.
I actually recalibrated my ph meter this morning and it was off. It should have read 4.0 when submerged in the 4.0 solution but it read 4.5 so I fixed that.
I think my ph was too low and it has caused a deficiency.
I do not think this is nute burn. For the last 4 days I've ran them at 300 PPM.
This condition is on all plants.
toastfighter2
Active member
I'm not sure if you were asking for advise in your last post or not, but I am pretty sure that it is your ph that was giving you all the problems. When I started doing hydro, I was using regular tap water(which btw, can be a terrible thing), and when it came out of the tap, it tested just under 8. Well, naturally, I let it set out to dechlorinate for 2 days at least, and dropped it down to 5.8(after adding nutes) before I would use it. All of a sudden, my lush green well rooted clones were turning, well the same as yours, with in a day or two of putting them. It turned out that the city water division was using buffers in the water to keep it below 8(but it pretty much locked it in at 8) so no matter how much ph down I added, it would be back at 8 within hours.
toastfighter2
Active member
Oh yeah, you may have to veg for a little longer that you wanted to, because you may lose a lot of leaves(most of the time the won't heal, and wither and fall off). Just thought that I would warn you so you don't freak out when it started to happen.
Thanks for the feedback. Through consulting with several more experienced aero growers the word that I am getting is that it is indeed a calcium deficiency due to low ph. I've adjusted things. We'll see how things go.
D
DjRightHooks
this is all becuase your meter calibration was off?..that sux man sorry to hear that .and im sure you will be fine with your adjustments..good luck
As far as I can tell, yes. I thought I was a steady 5.8 but I had not calibrated my ph meter since I placed the clones 3 weeks ago. It was even a week before that, actually....so I had not calibrated for the better part of a month. When I dipped it today it read .5 higher than it should have. Instead of 5.6 to 5.8 I was apparantly running in the 5.1 to 5.3 range which locks out Calcium(calcium is locked out up until 5.3 I believe). I'm hoping that my adjustments work.
As they sit now, I'm at an adjusted 5.9 and 400 PPM. The water temp is 66* and the room temp is 70*. I topped them last week and they are still growing really fast. I just need to get this problem fixed. I'll go snap a pic of them for you... the lights just came on. :smile:
ResinKing
Member
I am making the move to Hydroponics meself for a change - but I am going with a ebb and flow system..I have researched alot on hydroponics-it feels like you can just keep learning about it , I cant wait to get hands on with it..I seen your leaf problem , hope you got it sorted mate you seem to have got your question anwsered by experts.I heard of experienced Hydro/Aero users when your using a recirculating system you have to use RO Water as PH will be too hard to keep stable using adjusted tap water..How do you find this , are you constantly adjusting the PH in this system using your tap water..
Thanks for the reply. I use RO water, not tap.
D
DjRightHooks
those things are blowing up!Your plants will be fine, Dont you just love aero..
Schizophrenic
Member
aero is a wonderful thing..... 
I just took a picture of the canopy. As a longtime soil grower I am amazed at how fast these plants have grown. Here's the breakdown:
Clones were cut and placed on May 4th
The first roots sprouted on May 10th
Today is the 23rd day since they have shown roots and they are already in the net which is 14 inches above the pipes.
I know that my picture updates will be pretty boring until I flip the lights and show you guys some serious bud porn. However, I dug 2 holes today so I'm gonna mix in a little outdoor project here too.... This will also be my first attempt at growing outdoors. I'll place the plants in a few days and be sure to take my camera along.
I've consulted with Soniq, Irie, Earl, and a few other experienced guys on various sites and I've adjusted my ph after calibrating my meter along with a nice lime bath(foliar).
room temp- 70
res temp- 66
PH- 5.8
PPM- 500
Overall I am really happy with the way my first attempt at Aero/Hydro is going and I think they look pretty good even with a touch of calcium lockout.
Clones were cut and placed on May 4th
The first roots sprouted on May 10th
Today is the 23rd day since they have shown roots and they are already in the net which is 14 inches above the pipes.
I know that my picture updates will be pretty boring until I flip the lights and show you guys some serious bud porn. However, I dug 2 holes today so I'm gonna mix in a little outdoor project here too.... This will also be my first attempt at growing outdoors. I'll place the plants in a few days and be sure to take my camera along.
I've consulted with Soniq, Irie, Earl, and a few other experienced guys on various sites and I've adjusted my ph after calibrating my meter along with a nice lime bath(foliar).
room temp- 70
res temp- 66
PH- 5.8
PPM- 500
Overall I am really happy with the way my first attempt at Aero/Hydro is going and I think they look pretty good even with a touch of calcium lockout.
Possumtail
Member
Amazing grow you got going there 420fied best of luck to you. How long are you planning on flowering those ladies for?
This strain is usually done in 63 - 68 days. I've grown it before.
Thanks man. Once you go Aero you'll never go back. I was a longtime soil grower and I can't believe it took me as long as it did to change over. Best of luck.
D
DjRightHooks
i agree with you.These things are growing fast. I like what im seeing so far the system is working out great!One Question,do you think there will be alot of roots in the res come mid/end flower, because your still vegging correct?
u da man thanks 420fied and u know ill be checking back in
u da man thanks 420fied and u know ill be checking back in
