Name that deficiency!
- Thread starter Cissy
- Start date
polishfalcon420
Well-Known Member
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
Well-Known Member
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
Active Member
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?
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
Well-Known Member
5.6 is optimum. anything over 6 will cause lockout, usually nutrients/mierals such as iron, boron and molybedum etc.
Woomeister
Well-Known Member
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
Active Member
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.
Woomeister
Well-Known Member
most of the roots, if not all should be submerged.
Cissy
Active Member
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
Well-Known Member
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
Active Member
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
Active Member
OK.. tried to send you a PM just now, but not sure it went through.. Just in case.. Here it is:
cagreenmachine
New Member
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
Active Member
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
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
Well-Known Member
my pleasure Cissy!