Plants wilt during flower

KiaserGSD

Member
Ive been growing in dwc and it seems that everytime i clean my res while in the flower stage my plants go into shock. The leaves start drooping the next day and never recover. I thought that it might be from transplanting during the flower stage and the plant being sensitive, but upon further reading people clean their res often while in flower. HEELLPPP. ive had 5 or more plants that were half way through flower die bc of this. Can anyone give me some pointers???
 

OldMedUser

Well-Known Member
Stop cleaning your rez?

Not sure how you do it but a sudden change in ppm levels can cause the plants to sent water out their roots so they look like they have no water and dry right up.

I've never cleaned a rez/tub doing DWC ever and I've done about 50 DWC grows in the last 16 years.

I only change nutes once during a grow and have often gone a whole grow without changing nutes. Always clean at the end and the nutes come out clear.

Time to change some of the things you're doing is my advice.

What all are you using to feed them and what kind of water?

:peace:
 

KiaserGSD

Member
Im using advanced nutrients and honestly im using tap water that has been aerated for 12 hrs or so. I usually dont have a problem with switching nutes or even containers unless the plant is in flower. After cloning i put them in smaller containers to use less nutrients, then when the roots get a bit more substantial i put them in 4 gal containers where they will stay for the remainder of veg and flower. But ocassionally a plant will start to show signs of root rot so then i empty the res, clean it and put the plant back. Then boom... Wilting next day. But only during flower. Could the ppm's cause that in flower but not veg?
 

Lordhooha

Well-Known Member
Im using advanced nutrients and honestly im using tap water that has been aerated for 12 hrs or so. I usually dont have a problem with switching nutes or even containers unless the plant is in flower. After cloning i put them in smaller containers to use less nutrients, then when the roots get a bit more substantial i put them in 4 gal containers where they will stay for the remainder of veg and flower. But ocassionally a plant will start to show signs of root rot so then i empty the res, clean it and put the plant back. Then boom... Wilting next day. But only during flower. Could the ppm's cause that in flower but not veg?
I do the same as oldmed except I use my well water.
 

OldMedUser

Well-Known Member
Im using advanced nutrients and honestly im using tap water that has been aerated for 12 hrs or so. I usually dont have a problem with switching nutes or even containers unless the plant is in flower. After cloning i put them in smaller containers to use less nutrients, then when the roots get a bit more substantial i put them in 4 gal containers where they will stay for the remainder of veg and flower. But ocassionally a plant will start to show signs of root rot so then i empty the res, clean it and put the plant back. Then boom... Wilting next day. But only during flower. Could the ppm's cause that in flower but not veg?
You running RDWC I guess?

What are the signs of root rot you're seeing? I run AN with RO water and before I had a chiller I used peroxide on a regular basis. Just running individual tubs tho so no central rez.

A bad case of root rot can kill the plants fast but it takes a while before it gets bad enough to do that and it's easy to spot in it's early stages too. Slimy, brown roots usually on the ends first but can bloom anywhere in the root mass.

Peroxide can save the day if used in strong enough doses. No nute change needed.

Are your plants in plain water for any length of time while you're doing the cleaning? That can screw them up.

:peace:
 

70's natureboy

Well-Known Member
What are you using to clean the rez? I have a feeling it is some cleaning residue that the plants don't like. I have wilted some in the past after bleaching containers.
 

Cold$moke

Well-Known Member
Could it be his cleaning is destroying any bennies in his buckets.?

Cause i find after my set up stabilizes i like to leave it as long as possible as well like oldmeduser

Look up kratky method of hydroponics he goes the whole run on 1 res with occasional top ups.
With veggies anyway

Im running AN growmicro bloom. In one system

And RAW by npk in the other (im done with AN).

Even though both nutes go in thick and dark.

The res water looks clear by the next day?
 

KiaserGSD

Member
You running RDWC I guess?

What are the signs of root rot you're seeing? I run AN with RO water and before I had a chiller I used peroxide on a regular basis. Just running individual tubs tho so no central rez.

A bad case of root rot can kill the plants fast but it takes a while before it gets bad enough to do that and it's easy to spot in it's early stages too. Slimy, brown roots usually on the ends first but can bloom anywhere in the root mass.

Peroxide can save the day if used in strong enough doses. No nute change needed.

Are your plants in plain water for any length of time while you're doing the cleaning? That can screw them up.

:peace:
Yeah they are all seperate containers. As soon as i see a small amount of brown slime i add peroxide to try and catch it before it gets bad. You might be on to something with the plain water. I do put them in a bucket with plain ph'd water while i clean the res. Didnt know that could affect them.
 

KiaserGSD

Member
What are you using to clean the rez? I have a feeling it is some cleaning residue that the plants don't like. I have wilted some in the past after bleaching containers.
Ahhhh... That may also be a part of my problem. I do use some bleach to clean them out. Even though i think i rinse them thoroughly there may be some remninse that is affecting them.
 

KiaserGSD

Member
You running RDWC I guess?

What are the signs of root rot you're seeing? I run AN with RO water and before I had a chiller I used peroxide on a regular basis. Just running individual tubs tho so no central rez.

A bad case of root rot can kill the plants fast but it takes a while before it gets bad enough to do that and it's easy to spot in it's early stages too. Slimy, brown roots usually on the ends first but can bloom anywhere in the root mass.

Peroxide can save the day if used in strong enough doses. No nute change needed.

Are your plants in plain water for any length of time while you're doing the cleaning? That can screw them up.

:peace:
What amount of peroxide would you consider as a strong dose? Say for a 5 gallon res? I usually put about 5 ml per gallon, but would you suggest more per gallon?
 

OldMedUser

Well-Known Member
What amount of peroxide would you consider as a strong dose? Say for a 5 gallon res? I usually put about 5 ml per gallon, but would you suggest more per gallon?
I'd get the food grade 29 or 35% peroxide to treat the plants properly. You'd need a lot of drug store 3% and it has preservatives in it that wouldn't be good for the plants at higher doses.

I always used 0.5ml/L - 2ml/gal of the 35% twice a week for maintenance and up to 6 or 7 times that when treating root rot. I recently went thru the same thing with another guy so read about how his story went here.

:peace:
 

OldMedUser

Well-Known Member
What are you using to clean the rez? I have a feeling it is some cleaning residue that the plants don't like. I have wilted some in the past after bleaching containers.
You would have to leave a cup of bleach in a 5gal rez to kill the plants. A lot of growers use pool shock to keep a sterile rez instead of peroxide but I sure wouldn't. Cheaper tho if you don't mind your rez smelling like a public swimming pool. :)

:peace:
 

OldMedUser

Well-Known Member
Even though both nutes go in thick and dark.

The res water looks clear by the next day?
The colours cancel each other out so when diluted it just looks clear.

I've never seen my AN GMB look thick and dark ever so are you sure that's what you have? Just looks like coloured water when it comes out of my jugs.

:peace:
 

Cold$moke

Well-Known Member
The colours cancel each other out so when diluted it just looks clear.

I've never seen my AN GMB look thick and dark ever so are you sure that's what you have? Just looks like coloured water when it comes out of my jugs.

:peace:
Yea my lights are off ill get a picture tomorrow

Its the micro its dark brown since the day i bought it. The grow is light green the bloom is pink.

Its the ph perfect stuff if that matters?

But the micro is definitely brown not like gh micro. I figured it had kelp or humic extracts that made it brown

And thicker in consistency then the grow or bloom
 

Lordhooha

Well-Known Member
You would have to leave a cup of bleach in a 5gal rez to kill the plants. A lot of growers use pool shock to keep a sterile rez instead of peroxide but I sure wouldn't. Cheaper tho if you don't mind your rez smelling like a public swimming pool. :)

:peace:
It’s funny when you see folks using pool shock but then advocate for gassing off chlorine in tap water.
 

OldMedUser

Well-Known Member
Yea my lights are off ill get a picture tomorrow

Its the micro its dark brown since the day i bought it. The grow is light green the bloom is pink.

Its the ph perfect stuff if that matters?

But the micro is definitely brown not like gh micro. I figured it had kelp or humic extracts that made it brown

And thicker in consistency then the grow or bloom
The Micro is always dark but still just coloured water and no thicker than the G or B. Critical to use if running hydro or soilless tho.

:peace:
 
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