2 days into flowering, plant just keels over.

[Groov]

So...

Sorry I don't have the time to copy and paste the whole questionaire and answer all of it. I'll tell you everything that's important or what you want to know.

I grew my Blueberry F2 from seed originally in a 1" RW cube. Put it in my flood and drain system in hydroton pot. Vegged for 2 months. Transferred 2 of 4 of my females to a seperate 12/12 flowering chamber. Transplanted these into larger pots, still with hydroton. I did however change to a drip system for my flowering plants. I have 2GPH drippers and I have been running them 24/7 for the last couple days. I switched from the GH recomended feeding schedule for veg growth which was about 1200 @ .5 to the flowering Lucas formula 0G-16B-8M which is about 800 @ .5. I have a digital pH pen and am keeping the pH in check. My plants looked beautiful before I put them into flowering, changed from flood to drip, and changed the nute formula. I took a nap for about two hours tonight, woke up to one of the flowering plants completely keeled over. They also have been stunted for a few days but I figured that was due to the stress of all the changes so I wasn't worried until now. Both plants are still green and looking good, but one is completely on it's side. I've never ran into a fungus or rot before, but that's what I'm guessing considering I ran the drippers on a 24 hour schedule. Temperature in the room is about 72 all the time.. humidity is low < 20% .. reservoir temperatures are in the mid 60's. Also the reservoir has been smelling increasingly foul the last few hours, so bad that I have removed the drippers and am now top feeding the plants every few hours with a fresh solution. Help please! This is my second hydro grow, have done one soil grow before these two but never ran into a problem where I killed the plant. I am afraid I am a victim of damping off or dampening off or whatever it's called which is basically a fungus that occurs from being wet all the time am I right? Anyway, I have to go thanks for all your help in advance.


-Groov

 

[MynameStitch]

Sounds like you let them flood up to long or let them get water up to high.... how long was each time they were flooded/drip? and how far apart to the next flood/drip?

Foul water smelling means stagnet water, which means fungus may have attacked or mold..... When was your last res change? How long has the water been in the res?

Do you have a lid or something on your res? Also did you check the rockwool cubes to ensure no alge had grown on it?

If you got pics that word work if you can upload them. The site has been having issues with uploading pics......

Did the leaves look wilted like you had just chopped the plant?

Low humidity would not cause this issue, would cause issues with the plants transpiring more water; but it would not kill the plant, something invaded the root system or you flooded them too long and they were not getting enough air.... that would kill a plant real quick.


So are they in an ebb and flow setup now? Sounds like to me the plants got way to much damn water and rot started in the root system and made the water smell if the water you put in the res was changed recently.......

Did you check the color of the roots when you got it out of the system? Or check the roots when you came and seen the plant nearly dead?

So the important question is how long was each flood and how far apart was the next and was the flood able to drain completely before the next flood occurred?

If your plants were growing fine with 1200 ppms, you do not go and switch the ppms lower in flowering if they were not having any issues.....

 

[whatsthatsmell]

Welcome to the world of issue's when using Rockwool. I personally dont like rockwool due to the fact that is holds sooooo much water for a lot longer (i could never get the rockwool to drain well enough before the next flood so i switched to hygromite and hydroton). I'm gonna step out on a limb and say that your experiencing the samething did, your rockwool is not getting dry enough before your next flood or drip which then caused either root rot, mold, or something similar to that. The smell from the res is that stuff being washed out, you can add some Hygrozyme, hydrozyme, Cannazyme, etc etc (Most nute providers will have a "zyme" for you to use) and you will also want to add some hydroguard as well. Hopefully its not too late, if you can i would take those that are in flower and get them back into veg (dont put them into your try, keep them seperate) and see if you can work that stuff out before you put them back into flower...

Just my 2cents.

 

[MynameStitch]

I agree smell, I hate using rockwool for the exact reasons you listed, you also have to get them to the proper moisture point, not too wet not too dry or your medium will dry out and there goes your clones......; I found that peat pucks was so much better for me... but again everyone has there style of growing ya know
WHat works for me might not work for you.....

 

[Groov]

Sounds like you let them flood up to long or let them get water up to high.... how long was each time they were flooded/drip? and how far apart to the next flood/drip?

Foul water smelling means stagnet water, which means fungus may have attacked or mold..... When was your last res change? How long has the water been in the res?

Do you have a lid or something on your res? Also did you check the rockwool cubes to ensure no alge had grown on it?

If you got pics that word work if you can upload them. The site has been having issues with uploading pics......

Did the leaves look wilted like you had just chopped the plant?

Low humidity would not cause this issue, would cause issues with the plants transpiring more water; but it would not kill the plant, something invaded the root system or you flooded them too long and they were not getting enough air.... that would kill a plant real quick.


So are they in an ebb and flow setup now? Sounds like to me the plants got way to much damn water and rot started in the root system and made the water smell if the water you put in the res was changed recently.......

Did you check the color of the roots when you got it out of the system? Or check the roots when you came and seen the plant nearly dead?

So the important question is how long was each flood and how far apart was the next and was the flood able to drain completely before the next flood occurred?

If your plants were growing fine with 1200 ppms, you do not go and switch the ppms lower in flowering if they were not having any issues.....

Like I said .. I had the drippers running on a 24 hour schedule. That is, always on, never off. They are off now of course and I'm top feeding from a fresh source that I know isn't contaminated. The last res change was two days ago, as I made a fresh reservoir for my plants that I put into flowering so I could use the flowering Lucas formula with my GH 3-part. I have a lid on the res. It is light-proof. The RW cubes have no algea on them. The leaves do not look wilted like I chopped the plant. Green and healthy looking, but stunted growth and completely on its side. The plants WERE in drip.. but now I am top feeding from a fresh source. The plants, before 2 days ago(3 days now) were in flood and drain and were doing just fine. It's when I changed to a 24 hour drip schedule that they ****ed on me. I checked the roots on the one completely fallen over.. they look brown and shriveled like they didn't get enough water. But I know for sure this isn't the case. IF anything they got too much. Again, the plants were on a 24 hour drip schedule, always on never off. You're right about changing the nutes, but even the GH recommending feeding schedule off of their website says to switch to Lucas in flowering. Again, thanks in advance for your help.

 

[MynameStitch]

Ya, too much water then is what caused your problem, brown and shrivled up roots are caused by lack of o2, high temps that cause root rot issue which make the brown roots......

They were getting way too much water, if those plants had lived you should a changed out the res and most defiantly change the dripping time.... also like whatsthatsell said put some protective additives in there like hydroguard, h202 and a few he listed.... in the res so the roots will start to heal.