Trouble diagnosing issues. Please help

Afrikaner

Afrikaner

Member
Hi,

I decided to make a few changes in my grow environment for my latest grow and I'm struggling to correct plant problems. I initially thought that it might be wind burn in the larger tent.

Changes made:
Growing in winter instead of summer
Moved to 1m x 1m tent from a 70cm x 70cm tent
Changed DWC setup from fountain pump only to air stones only

Using GHE nutrients only
pH is around 6.2 from 5.8 as I thought is might be calcium issue
Water temp is around 19 C
Ambient temp is around 23 C

Progression shown in images below. Perhaps I'm just too impatient?

IMG-20190605-WA0005.thumb.jpg.a11cd3a7f02f288c4bb4fff3c20c2045.jpg IMG-20190616-WA0000.thumb.jpg.e817444264cace7c3a15a8e303e90418.jpg IMG-20190621-WA0002.thumb.jpg.6fd809e0a58d0c8dd3833d45993a5bf9.jpg IMG_20190629_152932.thumb.jpg.0f73409db291ffe4a9919af81ea4731b.jpg IMG_20190630_082418.thumb.jpg.f710290ef332695d6dfac4922441497c.jpg IMG_20190630_082434.thumb.jpg.20912879c4a88b459c6fcc81672bd65d.jpg
 
davisgirl

davisgirl

Member
Fellow noob so take my advice with a grain. Initially the light was too far away, so they grew spindly like that. Did you then jack the lights down, maybe causing a bit of a burn? I’ve done the same.

In the pics, something is definitely off. Lights too close? PH pen not calibrated? Water quality issue? Are you adhering to the feed schedule? Weekly res change? The RH was way low to start, but that got better. How big is that reservoir? It looks big. Maybe that air pump isn’t cutting it. Hard to say.

Sorry I couldn’t be more help.
 
Afrikaner

Afrikaner

Member
davisgirl said:
Fellow noob so take my advice with a grain. Initially the light was too far away, so they grew spindly like that. Did you then jack the lights down, maybe causing a bit of a burn? I’ve done the same.

In the pics, something is definitely off. Lights too close? PH pen not calibrated? Water quality issue? Are you adhering to the feed schedule? Weekly res change? The RH was way low to start, but that got better. How big is that reservoir? It looks big. Maybe that air pump isn’t cutting it. Hard to say.

Sorry I couldn’t be more help.
Click to expand...
Thank you either way. The initial stretch was because I was not around to move from CFL to Mars II 1600 LED. That was corrected after the first pic. I also thought that it might be water issue, so tried RO water. I'm moving back to tap water by slowly using less RO with each feed. More than enough bubbles in the reservoir though.

Will definitely re-calibrate the pH pen ASAP.
 
OldMedUser

OldMedUser

Well-Known Member
hotrodharley said:
Why are the net baskets empty? That’s a lot of exposed roots.
Click to expand...
My thoughts exactly. Need some hydroton in those net pots for sure.

Afrikaner said:
Hi,

I decided to make a few changes in my grow environment for my latest grow and I'm struggling to correct plant problems. I initially thought that it might be wind burn in the larger tent.

Changes made:
Growing in winter instead of summer
Moved to 1m x 1m tent from a 70cm x 70cm tent
Changed DWC setup from fountain pump only to air stones only

Using GHE nutrients only
pH is around 6.2 from 5.8 as I thought is might be calcium issue
Water temp is around 19 C
Ambient temp is around 23 C

Progression shown in images below. Perhaps I'm just too impatient?
Click to expand...
Your temps etc all seem good. Did you buy that tub ready made? I use Rubbermaid tubs and drill holes for the air lines under the handle so they aren't connected to the lid. When mixing up new nutes or going to a taller tub before flowering can just pre-mix the nutes in a fresh tub and lift the lid with plants off one and drop on the fresh one. That's easily fixable in your case.

You don't mention what ppm you're at and it looks like you have some nute burn going on and possibly the beginning of root rot as well.

I've done about 50 DWC grows with AN nutes and RO water. When they switched to pH Perfect that saved a lot of fussing around tho it wasn't a big deal before.

Leaving those pucks around the stems of the plants is likely going o be a problem. Very easy to end up with stem rot if they can't breathe. Need to fill those too small net pots with clay balls and take the pucks off.

You could do all four plants in that tub. I've had 16 in one tub before. Got crazy but was fun. lol

I found a great spot to download FREE POT BOOKS . I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as many are 50+ megs. They got lots. Enjoy.

:peace:
 
hotrodharley

hotrodharley

Well-Known Member
OldMedUser said:
My thoughts exactly. Need some hydroton in those net pots for sure.



Your temps etc all seem good. Did you buy that tub ready made? I use Rubbermaid tubs and drill holes for the air lines under the handle so they aren't connected to the lid. When mixing up new nutes or going to a taller tub before flowering can just pre-mix the nutes in a fresh tub and lift the lid with plants off one and drop on the fresh one. That's easily fixable in your case.

You don't mention what ppm you're at and it looks like you have some nute burn going on and possibly the beginning of root rot as well.

I've done about 50 DWC grows with AN nutes and RO water. When they switched to pH Perfect that saved a lot of fussing around tho it wasn't a big deal before.

Leaving those pucks around the stems of the plants is likely going o be a problem. Very easy to end up with stem rot if they can't breathe. Need to fill those too small net pots with clay balls and take the pucks off.

You could do all four plants in that tub. I've had 16 in one tub before. Got crazy but was fun. lol

I found a great spot to download FREE POT BOOKS . I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as many are 50+ megs. They got lots. Enjoy.

:peace:
Click to expand...
Second the funky looking roots.
 
Renfro

Renfro

Well-Known Member
Got a little case of root rot starting there. You running sterile or with bennies?
 
Renfro

Renfro

Well-Known Member
check out a product called Tribus Original by Impello. It's a very good way to improve your root health unless you are running sterile with pool shock.
 
Afrikaner

Afrikaner

Member
OldMedUser said:
My thoughts exactly. Need some hydroton in those net pots for sure.



Your temps etc all seem good. Did you buy that tub ready made? I use Rubbermaid tubs and drill holes for the air lines under the handle so they aren't connected to the lid. When mixing up new nutes or going to a taller tub before flowering can just pre-mix the nutes in a fresh tub and lift the lid with plants off one and drop on the fresh one. That's easily fixable in your case.

You don't mention what ppm you're at and it looks like you have some nute burn going on and possibly the beginning of root rot as well.

I've done about 50 DWC grows with AN nutes and RO water. When they switched to pH Perfect that saved a lot of fussing around tho it wasn't a big deal before.

Leaving those pucks around the stems of the plants is likely going o be a problem. Very easy to end up with stem rot if they can't breathe. Need to fill those too small net pots with clay balls and take the pucks off.

You could do all four plants in that tub. I've had 16 in one tub before. Got crazy but was fun. lol

I found a great spot to download FREE POT BOOKS . I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as many are 50+ megs. They got lots. Enjoy.

:peace:
Click to expand...
It looks like nute burn was the main issue and the plants are starting to look better after two days of lower nutrients in the water.
 
hellmutt bones

hellmutt bones

Well-Known Member
Don't know if you can put them into seperate reservoir but that would be the best option. Also the roots will tangle and they might choke each other out trying to fight for space and nutes. So you might get a runt or two.
 
Renfro

Renfro

Well-Known Member
PadawanWarrior said:
What is pool shock Renfro? I'm not running DWC, but am still interested. Thanks.
Click to expand...
Calcium Hypochlorite. It is commonly used to clear up bacterial and algae bloom in a swimming pool. A very small amount goes a long way. You can do some searches and find info about it. I personally dont use it instead I go with the beneficial bacteria route.
 
OldMedUser

OldMedUser

Well-Known Member
hellmutt bones said:
Don't know if you can put them into seperate reservoir but that would be the best option. Also the roots will tangle and they might choke each other out trying to fight for space and nutes. So you might get a runt or two.
Click to expand...
Who told you that?

They don't strangle each other or compete for space in DWC and grow quite uniform.

I've had 16 in one tub and a forest of 4' plants with huge colas.

This is the last of a tub that had 12 in it. Beer Can Betty! She was the biggest but not by a lot. I should have lollipopped them all and got bigger tops maybe.

BeerCanBetty01.jpg


:peace:
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Renfro said:
Calcium Hypochlorite. It is commonly used to clear up bacterial and algae bloom in a swimming pool. A very small amount goes a long way. You can do some searches and find info about it. I personally dont use it instead I go with the beneficial bacteria route.
Click to expand...
Ya that's what I thought you might be talking about. But that stuff is a hard core chlorine and I would never want to add that to my plants. Your talking about this stuff, and it's one of the stronger pool/spa cleaners. I would use beneficials instead also.
IMG_3615.JPG
 
hellmutt bones

hellmutt bones

Well-Known Member
OldMedUser said:
Who told you that?

They don't strangle each other or compete for space in DWC and grow quite uniform.

I've had 16 in one tub and a forest of 4' plants with huge colas.

This is the last of a tub that had 12 in it. Beer Can Betty! She was the biggest but not by a lot. I should have lollipopped them all and got bigger tops maybe.

View attachment 4359401


:peace:
Click to expand...
U would of had bigger plants if they weren't all crowded. Also your buds would be harder nuggets. From what I see they might be a bit of popcorn. If you space them out you will get rock hard nugs. If space is a problem run one plant at a time your yeild will be triple from one plant compared to the 3-4 you ran. (Some constructive criticism) you can tank me later noob bongsmilie
 
OldMedUser

OldMedUser

Well-Known Member
PadawanWarrior said:
Ya that's what I thought you might be talking about. But that stuff is a hard core chlorine and I would never want to add that to my plants. Your talking about this stuff, and it's one of the stronger pool/spa cleaners. I would use beneficials instead also.
View attachment 4359402
Click to expand...
People use it but not this people.

Chlorine causes cancer. It's well known and documented. I won't drink water treated with it. Swim in a pool or sit in a spa treated with it. And sure as hell wouldn't treat my plants with it then eat/smoke the buds from it.

If you need to sterilize your hydro and equipment then strong food grade peroxide is the way to go. Every bit as effective as chlorine and no nasty chem and it's byproducts.

:peace:
 
OldMedUser

OldMedUser

Well-Known Member
hellmutt bones said:
U would of had bigger plants if they weren't all crowded. Also your buds would be harder nuggets. From what I see they might be a bit of popcorn. If you space them out you will get rock hard nugs. If space is a problem run one plant at a time your yeild will be triple from one plant compared to the 3-4 you ran. (Some constructive criticism) you can tank me later noob bongsmilie
Click to expand...
I've done about 50 DWC grows and grown hundreds of plants in various soil/soilless mixes since my first buds in 1978 so I'm no nOOb. All those Afghani grew like that whether one per tub or lots and the same in pots.

Growing multiple plants in the same hydro tub is no different than a string of plants in an aero setup and they do fine.

Experience trumps bro-science every time.
 
hellmutt bones

hellmutt bones

Well-Known Member
OldMedUser said:
I've done about 50 DWC grows and grown hundreds of plants in various soil/soilless mixes since my first buds in 1978 so I'm no nOOb. All those Afghani grew like that whether one per tub or lots and the same in pots.

Growing multiple plants in the same hydro tub is no different than a string of plants in an aero setup and they do fine.

Experience trumps bro-science every time.
Click to expand...
Somehow I still think if you separated the plants you would be yielding way more. I get 4x the plant In one bucket. Also the colas are about the size of baseballs. Next time try to give each plant their own space or try to run each in its own bucket. That means you would have less plants but yeild more per sq foot. If you gonna grow like that you definitely need to lollipop or something like that. But I bet your veg time is short or do you strait from seed?
 
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