Autoflower dwc wilting

Hello everyone I have some autos I’m growing the temps are 63 at night and around 70 during the day the ppm is around 400 the ph ranges from 5.9 to 6.4 I changed the water out to add more nutes and fresh water it wasn’t a few hours later all my girls started drooping really bad gave it a day and emptied everything out and put just ph water in the buckets they perked up for a couple hours and did the same thing again any help would be greatly appreciated will post pics when I get home

Please differentiate between canopy temps and water temps? You should want lights on canopy temps around 80f and solution temps around 68.

Also, allowing ph to get to 6.4 is too high for dwc. If it rises above 6.0 you should be adjusting back down. You can set a little lower than 5.8 if need be to keep from having to constantly adjust if it’s always rising, like maybe 5.6.

I’d like to see the pics as developed plants will require more than 400ppm most of the time. Lack of oxygen in water will also make plants droop. Could be any of these.


Thanks for the response water temps is what I listed I honestly thought it might be salt build up so I cleaned flushed them only thing I can think of is it’s not getting enough oxygen so I did order a new air pump I put the ppm up to 480 and I started getting burns on the tips so I lowered it

I can not get it to post a picture just keeps giving me numbers and letters instead of the picture

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They don’t look bad otherwise. Do you have a little gap from bottom if net pot to your solution?

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Yeah I messed up when they were seedling and about drowned them so I’ve been keeping at least a one inch gap between the net and the water they are starting to perk back up a little the buckets had a thick white dusty looking film on it

How high is the water level? Looks like it could just be overwarering, lower the water level to let them get more air is what i would try and see if they perk up. Leaves should be straight out ridgid.

Edit -

Sorry man missed the 1" post lower it to 3 or 4"

Okay will do I appreciate all the help they were looking great until I changed out my water a couple days ago

COPY/PASTE the below list into your forum post.

Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)

-What strain, Seed bank, or bag seed (photo or auto)
-Age of plant
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
-Vessels: Type and capacity of container (fabric, plastic, etc)
-PH and TDS of Water, Solution, runoff (if Applicable)
-PPM/TDS or EC of nutrient solution if applicable
-Method used to measure PH and TDS
-Indoor or Outdoor if indoor, size of grow space
-Light system List brand and wattage/spectrum
-Actual wattage draw of lights
-Current Light Schedule
-Temps; Day, Night
-Humidity; Day, Night
-Ventilation system; Yes, No, Size
-AC, Humidifier, De-humidifier,
-Co2; Yes, No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution

Always try to upload a clear picture in white light of any issues you may have to allow the community to assist you.

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How do those roots look? Dark yellow/orange color?

Yea, its a conundrum right? I grow 6 different strains in the same RDWC. Typically one or 2 are touchy on the water level.

Gets confusing because you have some that are great, others are grumpy. Also out of nowhere all of a sudden you see signs like you see followed by what would look like cal-mag deficency except on bottom leaves and not where the most light hits up top. I went round and round, and the whole time it was water level.

In my expirence as they get bigger they progressively need more air space. This will lead to the perception of wow, they were fine 3 days ago whats wrong, nothing changed? …exactly, nothing changed but needed to, took me a while to figure it out myself.

The roots are not quite brown so yeah I would say kinda orangish. I will definitely try lowering the water it’s fir sure a conundrum because these girls are brats this is my second dwc grow the first grow went absolutely great so I said let’s try it again because I’ve always grew in soil but this time around I’m running into problems left and right thank goodness for this forum or I would be in trouble lol

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Another thing I would like to add I just checked my roots and when I dipped them back in the water this white stuff started coming off of like they had powder on them

If you fill out the Support Ticket it would help to diagnose your issues. In particular I’d like to know how large the grow space is and how much light you are running. Actual wattage and not what the manufacturer claims.

I suspect you have insufficient light due to low TDS of your nutrients. Plants need plenty of light to properly handle a nominal amount of nutrients. Your being at only 400 ppm with nute burn indicates that as a possibility.

The problem was root rot , somehow the fungus or bacteria started after a late transplant .