Nitrogen Toxicity?

Lion-O

Lion-O

Active Member
churchhaze said:
Don't do that again... lol. I assume some noob told you you had nute burn and that it needed to be flushed away like that? Yeah that's bad!

There's no point to flushing DWC because you can just empty the reservoir and start over if the mix is bad.
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I just found an article that a res. change too early can cause the root problems, which can make it look like my issues. Added some cal mag plus. Had it run for a day, and today the lower leaves look worse, crunchy, curled up, dying basically. Top leaves still dark green and drooped down. I believe the whole thing is related to the root issues. What I read was that changing too early makes the roots lose their resistance/bio film or something. This is the site: http://www.growweedeasy.com/root-rot

The ppm is now 472, Ph 5.7, (was 6.6 before adjusted today) water temp 66.7 degrees. I did do the res change 2 days ago (before reading the article...) and changed to biothrive grow and calmag, with hygrozyme. These were recommended by the hydro shop I visited. After adjusting the ph today and not adding any nutes, their are tons of foamy bubbles and ALOT more air coming out of the air stone than usual. I don't know about the foamy bubbles, but I know that more air bubbles is good. Just weird that I'm seeing more using a different nute line. I suppose if it truly is a root issue that is the 'root' of all the issues, then it'll take a few days to clear up, as I'm supposed to see better growth in the roots. I noticed though that this new nute line stains the roots a darker brown though, but seeing the bad colored roots before I believe I can tell the difference.

Again, this all started to go downhill fast once I added the insect prevention stuff, and even worse once the flush was done. If this plant turns to a ghost, so be it, I just hope I can figure out the right way to do the bubble bucket thing once/if my new seedling is ready to go to a hydro bucket.
 
C

churchhaze

Well-Known Member
Lion-O said:
I just found an article that a res. change too early can cause the root problems, which can make it look like my issues. Added some cal mag plus. Had it run for a day, and today the lower leaves look worse, crunchy, curled up, dying basically. Top leaves still dark green and drooped down. I believe the whole thing is related to the root issues. What I read was that changing too early makes the roots lose their resistance/bio film or something. This is the site: http://www.growweedeasy.com/root-rot

The ppm is now 472, Ph 5.7, (was 6.6 before adjusted today) water temp 66.7 degrees. I did do the res change 2 days ago (before reading the article...) and changed to biothrive grow and calmag, with hygrozyme. These were recommended by the hydro shop I visited. After adjusting the ph today and not adding any nutes, their are tons of foamy bubbles and ALOT more air coming out of the air stone than usual. I don't know about the foamy bubbles, but I know that more air bubbles is good. Just weird that I'm seeing more using a different nute line. I suppose if it truly is a root issue that is the 'root' of all the issues, then it'll take a few days to clear up, as I'm supposed to see better growth in the roots. I noticed though that this new nute line stains the roots a darker brown though, but seeing the bad colored roots before I believe I can tell the difference.

Again, this all started to go downhill fast once I added the insect prevention stuff, and even worse once the flush was done. If this plant turns to a ghost, so be it, I just hope I can figure out the right way to do the bubble bucket thing once/if my new seedling is ready to go to a hydro bucket.
Click to expand...
My guess (assuming you're using a good recipe for hydroponics) is you're loving your plants to death. The older growth will not recover, so if you try to fix that, you will be chasing problems forever (or until it dies). What you're thinking is N toxicity looks to me like water stress which would make sense if it was grown in plain water even for a few days.

I could have missed it, but did you even tell us what your base nutrients are? I keep seeing you talk about additives like hydrogaurd and cal-mag+, but what's important is your base nutes. Are they meant for hydroponics? Assuming they are, set it and forget it and resist the urge to make big changes, or you'll never be able to dial things in.
 
Lion-O

Lion-O

Active Member
churchhaze said:
My guess (assuming you're using a good recipe for hydroponics) is you're loving your plants to death. The older growth will not recover, so if you try to fix that, you will be chasing problems forever (or until it dies). What you're thinking is N toxicity looks to me like water stress which would make sense if it was grown in plain water even for a few days.

I could have missed it, but did you even tell us what your base nutrients are? I keep seeing you talk about additives like hydrogaurd and cal-mag+, but what's important is your base nutes. Are they meant for hydroponics? Assuming they are, set it and forget it and resist the urge to make big changes, or you'll never be able to dial things in.
Click to expand...
I just stated biothrive grow. I only adjust slightly nutes weekly, unless res change as stated. Before that was dynagrow.
 
C

churchhaze

Well-Known Member
I wouldn't use biothrive or anything organic in DWC. I would switch back to the dynagrow or something else inorganic and based on nitrate salts for N

Goodluck with your growing!
 
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