Root problem AGAIN? *PICS*

gvega187 · #1 03-20-2008, 09:52 PM

hey, so I have had this problem before...a lot. I have theorized that something is wrong with ONE of these things:

a) my temperature around the root space (68-70, while i am awake, possibly dips down to 60 for few hours while im sleepin) *not probable*

b) ph fluctuations (actually only for about 4 hrs ph was 4.7)

c) cheaper ph down i have been using lately. (Pro brand?)

d)temperature fluctuations in the grow room altogether. (no lower than 65, almost always 68-72) *water temp. fluctuations are identical*

*note* roots looked very healthy until they began extending beyond the netpots in past 1.5 days as seen in pics...tips are now basically dead looking, coming to a point of brownness.

Let me know what u think. Heres the pics:

DND · #2 03-20-2008, 10:03 PM

LIGHT! Trust me on this one man. It looks like you are using a grey tub for DWC right? I was doing the exact thing and my roots were doing it too. I finally bought another tub and spray painted it flat black and started using it. I was not only getting brown spots, but also slime on my roots. Nasty stuff...since I changed tubs though, I have not gotten any browning, slime and my roots are healthier than ever. I'll post a picture tomorrow, seriously the only brown on my roots is from the previous damage. Also, lower the water to 1-1.5" if you haven't already.

stickyicky77 · #3 03-20-2008, 10:40 PM

Make sure you keep the pH at 5.8 and make sure your air pump is working and your air stone is not clogged. Clean the rez when you change the nutes and keep light out of it. You might want to flush with some H202 and distilled water to try and clear it up. You also might want to think about starting to using some SubCulture and Hydroguard.

gvega187 · #4 03-20-2008, 10:50 PM

Quote:

Originally Posted by stickyicky77

Make sure you keep the pH at 5.8 and make sure your air pump is working and your air stone is not clogged. Clean the rez when you change the nutes and keep light out of it. You might want to flush with some H202 and distilled water to try and clear it up. You also might want to think about starting to using some SubCulture and Hydroguard.

ahh yes forgot to mention I flush every 7 days, nothing is clogged, I use GH florasheild, h2o2 and stopped using hygrozyme as it usually expedites my problems.

I think maybe somehow the light is still getting through thou. Mylar covers parts of the top, but probably not enough. Roots are still very healthy except for the tips....

Any thoughts on my temperatures?

gvega187 · #5 03-20-2008, 10:54 PM

Quote:

Originally Posted by DND

LIGHT! Trust me on this one man. It looks like you are using a grey tub for DWC right? I was doing the exact thing and my roots were doing it too. I finally bought another tub and spray painted it flat black and started using it. I was not only getting brown spots, but also slime on my roots. Nasty stuff...since I changed tubs though, I have not gotten any browning, slime and my roots are healthier than ever. I'll post a picture tomorrow, seriously the only brown on my roots is from the previous damage. Also, lower the water to 1-1.5" if you haven't already.

why is the lowering of the water necessary?

DND · #6 03-20-2008, 10:55 PM

Temps if you listed them correctly are fine... 68-70 is perfect.

I used aluminum duct tape (had some sitting around) and used that to do the entire tub before I spray painted and it still wasn't enough. Spray paint the tub flat black and you are golden my friend.

FrostickZero · #7 03-20-2008, 11:23 PM

Temp.
PH Levels
Light going through the tub
roots in the water?

groprofosho · #8 03-21-2008, 12:19 AM

Intuition is telling me your ppm's are too high. IF your ph and water temps are good, its ppm. Lower ppms will allow more 02 to be available to the roots, and i think its just generally burning the roots. Try keeping your ppm's at 150 to 250 until they get fairly large. dont lower the water too much. i used to lower the water but if you deal with the underlying issue you wont have to. Lowering the water means the plant has less water to buffer. This means more fluctuations in ppm, ph, and water temps, leading to decreased o2 availability. I use huge 30 gallon rubbermaids and the water level is up to an inch under my netpot, no problem. By the way for lightproofing your buckets nothing beats black 10mm construction plastic available at any home improvement store.

gvega187 · #9 03-21-2008, 09:38 AM

Quote:

Originally Posted by groprofosho

Intuition is telling me your ppm's are too high. IF your ph and water temps are good, its ppm. Lower ppms will allow more 02 to be available to the roots, and i think its just generally burning the roots. Try keeping your ppm's at 150 to 250 until they get fairly large. dont lower the water too much. i used to lower the water but if you deal with the underlying issue you wont have to. Lowering the water means the plant has less water to buffer. This means more fluctuations in ppm, ph, and water temps, leading to decreased o2 availability. I use huge 30 gallon rubbermaids and the water level is up to an inch under my netpot, no problem. By the way for lightproofing your buckets nothing beats black 10mm construction plastic available at any home improvement store.

oh yeah how could i forget. Ppm has only reached a maximum of 250 since these babies began. Thanks for the ideas guys, but still not sure exactly what is going on. I will let you guys know if the problem solves itself.

bwinn27 · #10 03-21-2008, 09:40 AM

looks like the roots are staying wet for to long whats your timer on? and what strength nutrients are you useng

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