Aeroponics 3x3x6 Grow TELL ME WHAT YOU THINK

Could be over reacting.... but..... I've got four 40 day old plants here and lately i've noticed that many of the leaf tips are curled and the leaves are bent in on them selves slightly, usually tell-tail signs of PH flux. But, i have a very nice ph meter and i calibrate very regularly... So i'm hoping someone will maybe help me out with some advice....

The system
5 gallon buckets with about 3 inches of water in the bottom of the 4 grow buckets + air stones, the middle bucket has two foggers in it that fully fog all four buckets 1 of 4 minutes, also in the middle bucket is a pump hooked up to sprayers in all 4 buckets that turn on for half a minutes every 3 hours to help things stay stirred up, PH is 5.8 check it twice a day. I'm using everything fox farms sells... Light is a 250w mh over clocked to close to 300w, it's about 15 inches above the plants, Thermostat in tent keeps it right at 75, water temp in 75, humidity is always 40-45.



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Day 40 give or take a day or two, just touching 14 inches tall most have 8 to 9 nodes,

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Just a close up.. next on to the relevant pics

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What I'm seeing is the leaf curl in on its self lightly and curled tips

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Can see the same thing here

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Along with the curling there are maybe 3 or 4 blades a plant with spots like this....

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Same as last one on different plant

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Inside the bucket... Roots look a little dark but i use bush doc sledge hammer and it always stains them a bit...

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random last pic all my timers, ect, I have a watt meter that keeps track of how much energy i use, comes out to 50 cents a day, I'm really loving economy growing long as this leaf issue resolves soon, Thanks guys. Peace.

Edited by heisenbud, 03 January 2012 - 06:00 AM.

Anyone??

After some reading on all of the possible deficiencies, I noticed that it said if you over water or over nutrient the plant then this may happen. It looks like your root system is a little dark. I've read on that just a little as I grow in soil. Good luck.

Looks like you are over fertilizing a bit. What are your PPMs?

i use fox farm sledge hammer, it removes all the built up salts in the grow medium and it always tends to stain the roots to some degree, they were crystal white until i used it. Also the pic was taken with a cell phone and it shows it several shades darker than it is. the aero is on 1min in 4 and that seems to be standard, not saying its Impossible just don't know

i use fox farm sledge hammer, it removes all the built up salts in the grow medium and it always tends to stain the roots to some degree, they were crystal white until i used it. Also the pic was taken with a cell phone and it shows it several shades darker than it is. the aero is on 1min in 4 and that seems to be standard, not saying its Impossible just don't know

Definately no salt problems here. Have you seen the charts that have drawn pictures with a description of the problem and how to remedy it? They help a lot having them in the room you grow in. Pull up deficiency charts and search in images. You should find it there. Good luck!

Definately no salt problems here. Have you seen the charts that have drawn pictures with a description of the problem and how to remedy it? They help a lot having them in the room you grow in. Pull up deficiency charts and search in images. You should find it there. Good luck!

thanks but i don't know how that helps me... i keep my p.h nearly always right on 5.8 and i use fox farms, time trusted with ALL nutes needed, if p.h. is fine and im using brand nutes i don't believe deficiencies are possible, know what im saying?

thanks but i don't know how that helps me... i keep my p.h nearly always right on 5.8 and i use fox farms, time trusted with ALL nutes needed, if p.h. is fine and im using brand nutes i don't believe deficiencies are possible, know what im saying?

Added this pick to show root color took that today different camera as you can see the roots are white white white. Still looking for ideas anyone? Anyone?
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I have no experience with Aeroponics but just looking at the first picture it looks likes it's over watered.

...I'm just going to throw a couple things at you here.
...one, I would move that 250w down to about 8" away from your canopy (even closer if aircooled)
...two, I would switch fertz to General Hydroponics (Lucas Formula)

...other than that, I think your plants look okay....good job.

I'm not just gonna switch fertz to much money invested in fox farms. Everyone that I know that rocks the hydro insists foxfarms. I'll move my light closer. Air cooled by a 6 in vortex fan so I can keep it cool enough. Do you think dropping the light will help leafs?

I have no experience with Aeroponics but just looking at the first picture it looks likes it's over watered.

I had a combo of aero and the 360degree misters that people use to clone, I have since stopped using the 360s and use the tubes that brought them water to just stir up the bottom of each bucket ever 30 minutes or so, hopefully over watering is the problem and this will fix it.

Very good, try those couple of steps and give it a few days to see the results. Patience is the name of the game with ganja unfortunately that can be a very hard game to play.

Looks like a nitrogen related thing to me.

Your plants look like they are growing at a pretty good clip and that will use it up faster.

I was gonna say ease up on water too,but I'm a newb at inside grows.It looks nice n thick stemmed.Maybe lighten up on water n nutes awhile.Plus keep an eye out for insects.Ive had bugs attack some outside plants that look similiar to that.

Looks like you are over fertilizing a bit. What are your PPMs?

hydro builder was on the right track.....

looks like too many salts too me. it doesnt matter if you add somthing to "remove all the salts," salts are fertilizers. you have to measure them out adequatley, ESPECIALLY in nutriculture systems. even a little too much can plasmolyze your roots.

-OSUB

hydro builder was on the right track.....

looks like too many salts too me. it doesnt matter if you add somthing to "remove all the salts," salts are fertilizers. you have to measure them out adequatley, ESPECIALLY in nutriculture systems. even a little too much can plasmolyze your roots.

-OSUB

... I take up most care in mesurments. Also my electro conductivity isnt over 2.0

Electro conductivity... ugh.. An EC meter does not in any way supply you with an accurate number as to just how much fertilizer (or salts!!) that are really in your solution.
If you were measure your nitrogen, your potassium, your phosphate, all out separately then it would be a viable measurement. But nutrients don't come that way, do they? To put it simply, you have no clue to how much of any specific fertilizer ions that are in the solution or even an accurate estimate of how much is there entirety.

PPM's ARE ALWAYS much higher than EC readings. This means that if you have been using EC alone (god forbid) then you have been giving your plants too much even if the EC is "perfect". This is because nutrient manufactures use PPM's and NOT EC!!

The best way to mix your nutrients is to combine them according to the directions at whatever PPM you desire.
--
How many ml/L are you using of each type of nutrient?
As HydroBuilderCom asked, what are your PPMS?

It is extremely likely that you are using too much nutrients based off your plants physical appearance alone.. and likely from some of the information you provided in this thread. It looks like too much nitrogen.

Do you use Grow Big Liquid Plant Food by Fox Farms?

Here's why:

Ammonium sulfate = (NH4)2SO4
It contains 21% nitrogen as ammonium cations, and 24% sulfur as sulfate anions.

Foxfarm's line uses Ammonium Sulfate in their INORGANIC products, specifically Grow Big Liquid Plant Food.

Products which contain ammonium may cause NH4+ toxicity.

NH4+ toxicity is a type of nitrogen overdose. NH4+ toxicity causes:
- Dark green leaves
- Leaf margins to roll downward
- Big fan leaves will have the "claw look" to them. They will remain upright while the tips roll down.
- Mildly deformed new growth
In more serious cases:
- stunt plant growth and create yellowing cuts to appear on stems.
- Roots will seem under developed
- New growth my be twisted or ill-formed
- Flowering may be slow

________________________

Your girls look good man. Whatever you're doing is working well enough so far. Try laying back of the nutrients for a little while.. go down to 2/3 of what you're givin' them down.
Good luck.

Edited by Biotecology, 09 January 2012 - 10:09 AM.

Electro conductivity... ugh.. An EC meter does not in any way supply you with an accurate number as to just how much fertilizer (or salts!!) that are really in your solution.
If you were measure your nitrogen, your potassium, your phosphate, all out separately then it would be a viable measurement. But nutrients don't come that way, do they? To put it simply, you have no clue to how much of any specific fertilizer ions that are in the solution or even an accurate estimate of how much is there entirety.

PPM's ARE ALWAYS much higher than EC readings. This means that if you have been using EC alone (god forbid) then you have been giving your plants too much even if the EC is "perfect". This is because nutrient manufactures use PPM's and NOT EC!!

The best way to mix your nutrients is to combine them according to the directions at whatever PPM you desire.
--
How many ml/L are you using of each type of nutrient?
As HydroBuilderCom asked, what are your PPMS?

It is extremely likely that you are using too much nutrients based off your plants physical appearance alone.. and likely from some of the information you provided in this thread. It looks like too much nitrogen.

Do you use Grow Big Liquid Plant Food by Fox Farms?

Here's why:

Ammonium sulfate = (NH4)2SO4
It contains 21% nitrogen as ammonium cations, and 24% sulfur as sulfate anions.

Foxfarm's line uses Ammonium Sulfate in their INORGANIC products, specifically Grow Big Liquid Plant Food.

Products which contain ammonium may cause NH4+ toxicity.

NH4+ toxicity is a type of nitrogen overdose. NH4+ toxicity causes:
- Dark green leaves
- Leaf margins to roll downward
- Big fan leaves will have the "claw look" to them. They will remain upright while the tips roll down.
- Mildly deformed new growth
In more serious cases:
- stunt plant growth and create yellowing cuts to appear on stems.
- Roots will seem under developed
- New growth my be twisted or ill-formed
- Flowering may be slow

________________________

Your girls look good man. Whatever you're doing is working well enough so far. Try laying back of the nutrients for a little while.. go down to 2/3 of what you're givin' them down.
Good luck.

Hmm,
Did you know a tds meter that reads ppm is nothing more than an ec meter with a conversion calculator built in? You CAN only have an ec meter, and just do the conversion your self.
I happen to have a combo tds Ph ppm by hannah, so I watch my ec and ppm, I keep ppm under 1200, which means 2.2 ec mines about 2.0 or a lil more, at this point in veg
I only add the ratios of nutrients that the feeding chart says, always a little less, and by the way, fox farms does give you ec reading to follow on their charts, and there are numerious places to find conversion chats from ec to ppm depending on your meter.
Hauling back on nitro may be a good idea. I'm thinking of switching nitro fertz to a different brand in future grows possibly.

Edited by heisenbud, 10 January 2012 - 08:03 AM.

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