Name that deficiency!

[Cissy]

bump.. need help

 

[polishfalcon420]

hey cissy, I just flushed mine with plain phed water for two days and gave them back their nutes yesterday. so far so good for me. I had several defs going on at the same time and raising the nutes ppm didnt fix over a couple of days so I determined that it was nute lockout. they were still growing like that but had a bunch of weird stuff going on. give the flush a try and see what happens it cant hurt.

 

[Woomeister]

The picture show signs (severe signs) of rootball deoxygenation, do you have an airstone? Is it working efficiently? The yellowing is indicative of lack of nitrogen uptake also or iron deficiency caused by ph fluctuation. I personally believe you need to lower your ppm to 400 max as your plants are not looking happy at the current levels and make sure the o2 levels are high enough in the water. Woomeister (19 years growing hydro).

 

[Cissy]

hey cissy, I just flushed mine with plain phed water for two days and gave them back their nutes yesterday. so far so good for me. I had several defs going on at the same time and raising the nutes ppm didnt fix over a couple of days so I determined that it was nute lockout. they were still growing like that but had a bunch of weird stuff going on. give the flush a try and see what happens it cant hurt.

GREAT! Happy that you were able to get your problems under control. After hearing back from you and from the gentleman below, I am going to give them a nice flush now. 2 days with NO nutes, huh? Then a gradual rise maybe 100PPM per day?

The picture show signs (severe signs) of rootball deoxygenation, do you have an airstone? Is it working efficiently? The yellowing is indicative of lack of nitrogen uptake also or iron deficiency caused by ph fluctuation. I personally believe you need to lower your ppm to 400 max as your plants are not looking happy at the current levels and make sure the o2 levels are high enough in the water. Woomeister (19 years growing hydro).

Well, I certainly cannot argue with 19 years experience so I will do exactly as you suggested!

I am just a bit confused as to how this could happen, since I have stayed on top of my PH and it hasn't fluctuated much on its own anyway. AND there is more than enough air in there. a 950GPH pump with (not kidding you) 8-4foot long nylon airstones that put out a TON of air. And I only have 10 plants in there... So if anything it's air overkill! Believe it or not the roots like amazingly healthy. PEARL WHITE and thick as can be!!! Which only has me even more confused.

Definitely going to flush though and then I will make sure not to go over 400PPM on the back side of that. Going to do as the poster above suggested and leave it in plain water for 2 days, then I will work my way up to 400PPM as you suggest.

THANK YOU!!!!

PS - What PH level would you recommend for my DWC setup? I have kept it within range of what I have seen many people recommend (5.5-6.3) and to be more accurate, I have kept it very near the recommended 5.6 that AN recommends. Your thoughts? That sound about right?

 

[Woomeister]

5.6 is optimum. anything over 6 will cause lockout, usually nutrients/mierals such as iron, boron and molybedum etc.

 

[Woomeister]

Cissy ask to befriend me on my profile page, then you can pm me. Also, sign you reps so people know who did it! Any help needed drop me a pm.

 

[Cissy]

Cissy ask to befriend me on my profile page, then you can pm me. Also, sign you reps so people know who did it! Any help needed drop me a pm.

You'll be getting more than you bargained for with that offer, I'm afraid (especially if you know a lot about growing in a SOG). lol I probably have 100 questions I could ask you, but I will maybe wait for the 3 most critical prior to bothering you (sorta like a genie lol).

thank you so very much!

Just drained my reservoir and gonna let em sit in 0ppm water PH'ed @5.6 for 2 days.

 

[Cissy]

Quick question:

How high should the water level be? More specifically, how high up should the water be on the roots?

50% of the roots under water? 75% under water? etc...

 

[Woomeister]

most of the roots, if not all should be submerged.

 

[Cissy]

most of the roots, if not all should be submerged.

Wow.. OK.. so maybe this is part of the problem? I have not had them more than 50% submerged and have let it drop down a bit from that starting point as well. I have some very good bubble action going on in there and the roots are wet all the way up to the pots, so I assumed it not necessary to fill it up so high. The reservoir is 14" deep and to fill it up all the way would take a ton of water, but if it's necessary and would help in any way, then I will definitely fill er up from now on.

 

[Woomeister]

The bigger the reservoir the more stable the ph, also the bigger surface area of roots in the reservoir the more oxygen uptake is possible.

 

[Cissy]

The bigger the reservoir the more stable the ph, also the bigger surface area of roots in the reservoir the more oxygen uptake is possible.

Even filling it up halfway its still 30 gallons and the PH has been fairly stable (despite filling it up only halfway).

I assumed(it appears mistakenly) that leaving half of the roots out of the water was actually beneficial and increased the oxygen uptake. Seemed to make sense to me, but I guess it's not that simple. If you tell me it's best to keep them pretty much completely submerged, then that's what I will do. My poor little R/O system just can't keep up. lol

 

[Cissy]

Cissy ask to befriend me on my profile page, then you can pm me. Also, sign you reps so people know who did it! Any help needed drop me a pm.

OK.. tried to send you a PM just now, but not sure it went through.. Just in case.. Here it is:

I really appreciate it. It can be quite difficult to find a straight answer at times when attempting to learn something new. People fail to quantify things ("not too much", not too big", etc) or break things down to a level that an inexperienced person can follow.

I have a few unrelated websites myself and I make it a point to go out of my way to help break things down for people, so I really do appreciate your taking the time to assist me!

that being said.. here is a simple question (1 of my 3 lol):

When refilling/changing the water/nutes, is it absolutely imperative to take the mother plants OUT completely and add all of my nutes and adjust the PH PRIOR to putting them back in?

For my mothers I have 9 of them in one big DWC reservoir and taking them out once every 10 days or so can prove to be quite the task. BUT will my not doing so and adding the water, nutes, ph adjuster directly to the reservoir while they are still in it cause problems?

again.. thank you very much!!!

shoot.. wait.. let me ask you something else real quick as well..

I tried my 1st set of clones in a DWC system and had virtually NO success at it. Not sure why, I followed the very simple instructions/advice that i have seen offered 101 times.. so I am going to switch things up a bit and root in some rapid rooters and then veg them for a short week or two (rather than a true zero veg).. So quickly.. how close to the bottom node do you cut? I went about 1/4" below it with my 45degree angled cut... then sliced off that bottom node, dipped it in some rooting gel, and then popped it in my cloner.. seemed straightforward, but it failed miserably.

Actually, I assume that it failed due to the lack of humidity(very dry here). I did not use a dome and maybe my hourly sprayings just werent enough. Hence my switching to a dome, the hear mat and the rapid rooters now.

So now with the rapid rooters.. how would you run it? do the rapid rooters need to stay wet or just damp? i will keep a dome over them now and mist it as needed.. then once a couple roots come through the rapid rooters I will pop them in a cup and stick them in my little "cloner" for a short veg time. Am i missing something here? any thoughts or suggestions? dont want to ruin another crop of cuttings.

ok.. 2 questions down! lol

thanks again!

 

[cagreenmachine]

OK.. tried to send you a PM just now, but not sure it went through.. Just in case.. Here it is:

great thread here. learning a lot....

deficiencies are a beyatch, aren't they? I had a friend with something like this once and they just let it go. And like magic, the prob worked itself out.


but from the way you're describing your prob, seems like you do need to do somethin. wish i could tell you what.

rootin for you.

 

[Cissy]

Just as an update in case anybody else comes across this thread while having the same issue.

As I mentioned here, my PH was never out of range and pretty much everything was on point as well... but the one thing I never thought of (being that I am a newbie) was that the water level in my reservoir was too low. Well, after trying everything else and finding no success, my merely raising the water level has solved the problem. The plants are now growing at a rate that I am having a hard time even believing. It took less than 2 days for them to perk right up and now I am having to raise the lights a couple times a day. Amazing how fast they have recovered. I did not change anything other than the water level! Just in case anybody else has a similar issue, that was definitely the cause of my problems.

thanks again Woomeister

 

[Woomeister]

my pleasure Cissy!