WHEN areo turns on you!!!

[ghuser113]

here is a problem i keep having about the same time every run 35-40 days into flower here are some pics and i will fill the hydro q list out.... Plezz help me out so i can find out what is going on!!!





How long has this problem been going on? 2wks
Are you growing in a PVC grow tent? no
What system are you running? areo flow 18 site GH
What STRAIN are you growing? chrystle nirvana
What was the establishing technique? clone
What is the age of your plants? 35-40 days flower
How long have they been in there mixture they are in now? 1 or 2 weeks
How tall are the plants? 1ft 2 ft
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in? FLOWER
What Technique are you using? not sure?
What substrate/medium are you using?(Hydroton, RockWool etc.) Hydroton
What is the Water temperature? 70-76
What color are your roots? White? Brown? Are your roots slimy?no slime white
What Nutrient's are you using?(If growing soiless) Gh 3part and flora plus koolbloom and cal/mag
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*micro75ml gro 0ml bloom 110ml cal/mag25ml koolbloom30ml in 10gals on RO Ro comes out at 10ppm
How often are you feeding? (If using soiless)as soon as my ppm gets down to 400-500ppm
How often are you giving nutrients? (If using soiless)same as above
If flowering, when did you switch over to using Bloom nutrients?as soon as i saw pre bloom
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) micro1st cal/mag 2nd bloom3rd then koolbloom and sometimes flora +
What is the TDS/EC/PPM you are using 950-990
What is the pH of the "Tank"?5.8-6.0
How often are you testing your pH/PPM/EC/TDS? yes
Are you sure your calibration is correct on your equipment?yes
When was your last watering? everyday
What is your water temps?70-78
When was your last feeding change? (ie. grow-bloom-micro-additional)4days ago doing a flush to c if it helps right now
How often do you clean your system: example: Flush out, water replace with clean water and nutrients? dont just do a change of nutes most of the time
What size bulb are you using?one 1000W hps and 1400w hps
How old is the bulbs you are using? about 4 months and 6months
What is the distance to the canopy? about 20-24ins
What is your RH Factor(Relative Humidity)?40-50%
What is the canopy temperature?70-80
What is the Day/Night Temp? (Include flucutaion range)75-80 in the day 65-70 at night
What is the current Air Flow? (cfm etc.) have a vortex 740 cooling both lights
Tell us about your ventilation, intake exhaust and when its running and not running ?vortex 740 cooling lights pulling out air and pulling outside air in at the same time passive air system
Is the fan blowing directly at plants?osalating
Is your water HARD or SOFT?soft
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
If using tap water, what is the ppm/EC/TDS of the water right out of the tap? Im using RO ppm is 10ppm out of the system
If using RO,Distilled,mineral water, what is the ppm/EC/TDS without any additives? 10ppm
Are you using water from a water softener?City water
Has plant been recently pruned, cloned off of or pinched..No
Have any pest chemicals been used? If so, What and When?
Are plant's infected with pest'sNo pest No chemicals

 

[socialist]

You probably should have posted this in the Infirmary forum.

It looks like a calcium deficiency. Try dropping your pH to 5.2 and letting it rise to 5.8 before dropping again to 5.2

 

[joe fresh]

looks like mg def to me....possible K def too...do you let the ph swing? does it go up or down?

imo i think you are giving too much nutes or not mixing them correctly and something is getting locked out....

 

[socialist]

looks like mg def to me....possible K def too...do you let the ph swing? does it go up or down?

imo i think you are giving too much nutes or not mixing them correctly and something is getting locked out....

I have to disagree. The one photo does look like it could be the beginning of mg deficiency. The rust spots you see are indicative of a calcium deficiency. A potassium problem usually is shown with a lighter colored rust spot around the serrated edges of the leaf.The link below is a list of problems with photos.

https://www.icmag.com/ic/showthread.php?t=11688

 

[joe fresh]

its ok i dont need the link ive been through these problems before, experience is always better than pictures, i find with pics its much easier to misdiagnose the problem(happened to me a few times.....the leaves curling up is either K def or P def, those are the only 2 that will burn&curl up

too much calcium will lock out P and Mg, so thats a possibility if both P and Mg are deficient together...either way my money is on P, K or Mg def, or a combination of these, i dont think its a calcium def, but thats just one mans opinion

 

[socialist]

it's ok, the link wasn't for you.

 

[joe fresh]

in all reality i think maybe the problem is in the way you feed them....which is it:

1) fill the res, when ppm gets down to 500 you top up the res with more fertilized water

2) fill the res, when ppm gets down to 500 you change out the res completely for a new batch of fresh water w/nutes


how often does this happen? more than once a week? or more/less?



i got a pretty good feeling you are making an imbalance of certain nutes and locking others out

 

[socialist]

in all reality i think maybe the problem is in the way you feed them....which is it:

1) fill the res, when ppm gets down to 500 you top up the res with more fertilized water

2) fill the res, when ppm gets down to 500 you change out the res completely for a new batch of fresh water w/nutes


how often does this happen? more than once a week? or more/less?



i got a pretty good feeling you are making an imbalance of certain nutes and locking others out

I'm definitely on board with this theory.

 

[ghuser113]

I change the nutes out and add fresh water and nutes when it gets down to 500 and im doing what GH sayd to do ex for the calmag im adding it to the res and right after the micro is mixed up really well to give me about 150-200 ppm of cal/maf since im using RO and im dont have any of the grow in there so could it be K def?? im 38 days into flower so the nutes reg from gh says not to use grow

 

[Space Toker]

my God talk about detailed! I couldn't read it all to be honest but I hope you have the help you are looking for as I don't have it. I am interested in the solution as I am considering aero but I wish I had more to offer you! good luck!

 

[ghuser113]

Areo is the way to go i have tried it all and mush faster grows as well as way less ph problems but you can c what happens when one thing get out of whack

 

[joe fresh]

and how often are you changing the res? you should not change it when it gets down to 500ppm, but rather change it once a week(like every weekend), and adjust nutes accordingly...then watch for ph/ppm to rise fall and adjust accordingly on next res change....

i think this is where you are getting your defs

 

[socialist]

and im dont have any of the grow in there so could it be K def?? im 38 days into flower so the nutes reg from gh says not to use grow

I wouldn't follow the GH bottle instructions if thats what your doing.

 

[ghuser113]

yes thats what im doing lol should i just go to lucas? and when the rez gets down to 500 its befor a 7 day period is up mor like 5 days

 

[joe fresh]

change the res once every 7 days regardless what the ppm is at...i think this is where your getting you def/toxicity....

do a bit of reading on ph and ec for hydro, im sure within no time youll have that system back in order

 

[socialist]

yes thats what im doing lol should i just go to lucas? and when the rez gets down to 500 its befor a 7 day period is up mor like 5 days

Like Joe said completely change your res every 7 days. I would try Lucas if I were you. I wouldn't recommend following the feeding schedule set by GH. Also set your res pH at 5.2 it should drift upwards. Check it every few days and correct the pH to 5.2 once you have hit 6.0.

 

[ghuser113]

cool thanks for all your help guys again.. I just was in my room and checked my ph and it was at 5.5 and 4 days ago it was the same 5.5 it was droping but now just stuck at 5.5 so i took it up to 5.7 to c what happend but ph is suppose to go up not down right? i always thought when ph goes down your not feeding enough, and should i just go lucas at this point for simplisity? drop the cal/mag and all else

 

[joe fresh]

when ph goes down and ppm goes up--- feeding too much

when ph goes up andppm goes down----feeding not enough

when ph stays stable not quite sure what that means but im sure its not good...ask some hydro guys about that...im a soil guy

 

[FreezerBoy]

Stable EC and pH means water and food are absorbed equally or, "just right".... NOT! It sounds good on paper but, no single pH reading allows equal absorption of all nutes. Therefore, steady EC/pH guarantees unbalanced feeding leading to deficiencies, toxicity or both.

Swing, baby, swing.

 

[Hydro-Soil]

Duplicate thread... this is already in the infirmary.

BTW... if you're using lucas and can monitor ec/tds... there's no need to change the res out for at least 4 months. (the only real toxicity buildup comes from the continual additions of pH down)
You can change it as often as you like but it's a waste of nutes and water. *shrug*

Lucas is balanced... you don't get excess nitrogen the plants didn't absorb building up in the res... nor any other elements.

Any other nutrient profile.... I would most definitely be changing out the res a lot more often.

Stay Safe!