plant help needed

[teljax]

I’m growing indoors in a 4' X 4' hydro hut with a 600 HPS. I’m using two 265 cfm blowers for air intake and outtake. The thermostat is set at 75f and it never goes above 80f. The clones were purchased from a few local dispensaries. The clones are master kush, buba kush and og kush. The clones were transplanted into miracle grow potting soil in 1 gallon growing bags and because the potting soil has nutes in it already, I’ve only given them ph balanced water (ph 6.8). The clones have been in the garden for two weeks.

As you can see by my pics the clones outdoors are doing ok but the clones indoors leaves are turning white. I looked on your site and read mynamestitch article called The Complete guide to Sick Plants, pH and Pest troubles! Judging by the pics in mynamesstitch article it looks like I might have an iron deficiency. What do you folks think?

Any help will be greatly appreciated.

 

[Brian1975]

What is your run-off PH? It does look like iron deficiency but is it from lack of Fe or PH lockout? That is the question. That is why I wouldn't use that soil mix. Starting out with a clean canvas is the best way to soil grow. Keeps you in complete charge and you know what is currently present in the soil and how much. Got a whole bunch of stuff in there and you can't address your deficiency because you don't want to overdo something that is currently abundant in the soil.

 

[teljax]

I agree with you about the soil. Next time I will use something without any nutes in it.

I added some ironite (1/8 strength) yesterday. The ph going in was 6.8 but the overflow I tested was 5.0-5.5

It was at that time I decided to write a post to you guys for help.

 

[teljax]

Almost forgot...My wife thinks I am over watering the indoor plants because both the indoor and the outdoor clones were planted from the same bag of soil...Could this turning white effect be from over watering and not a nute deficiency?

 

[TNJed]

How close are your lights? Looks a little like light bleaching to me, although I am by no means an expert grower...

 

[Brian1975]

If you add to much Iron without adding enough Phosphorus, you can contribute to a phosphorus deficiency , so watch out how much iron and phosphorus your nutrients have. Just something to keep in mind is all. You may be just fine with that amount, I don't know. Plants droop and may get a little yellowed from overwatering, not white. That PH is low. Too low for soil. You could use some dolomite lime maybe. Not sure with that soil but that PH is out of whack. Runoff in low 6's at least would be passable, but in the mid 5's

 

[Brian1975]

I considered the light bleaching as well but you can see how the discoloration starts from the inner part of the leaf and spreads out towards the tip. I think light bleaching would affect it more evenly. Who the hell am I to say though...just my opinion.

 

[MTF-Sandman]

99.99% of soil mixes have more than enough Fe already in them...especially for plants that small that haven't been in there long.

Check your runoff PH...Fe is getting locked out by PH or overwatering.

 

[teljax]

Thanks for all the response guys...Feels way better not being all alone with this problem...the light is 4 feet away.

Its also strange how the outside plants show no signs of trouble even though their both in the same soil. the indoor plants are in trays and have sat in a little water for a few days where the outside plants can run out on to the ground.

I hear you about not really looking like over watering....hope not to lose em.

 

[teljax]

Perhaps I should adjust my ph so the run off is closer to 6.5....what do you think?

 

[Brian1975]

6.5 is a good target to shoot for. 4 feet is an awful long way for the light to be from the plants. I forget optimal but I am sure someone will chime in with the distance chart or something. Definitely needs to be closer though...IMO.

 

[teljax]

it was two feet away i moved it to 4 feet because I had thought it might be too much light. you know, just trying everything i can think of....

im thinking of finding the right ph so the run off is 6.5 and then flushing all the plants.

 

[Brian1975]

Sounds like a good idea. I hope you are able to get a good flush with that soil. Get a few bottles of distilled to have on hand for such problems. With proper venting of the lights heat(fan blowing on it), you can get that light much closer.

 

[porgy tirebiter]

Looks like it needs some nitrogen, not to mention the other basic nutrients. Those plants are large, MG soil ain't got alot of nutes in it, especially for fast growing annuals like cannabis. Nitrogen is translocatable, and yer deficiency is in top leaves. Get yerself some Pure Blend or another quality, complete fertilizer and try it at about half strength.

Still, they all look very well and lack o'nutes is not near as bad as overfertilizing. You'll be fine, 'cause you obviously have the desire and heart. Best of Luck!

 

[bushdoctor]

This looks just like what I have been going through, As Sandman told me. Not iron def but Ph lookout. My ph was to high and my water was hard causing the exact same look. I would lower my ph so your runoff is 6.3. IF not this lookout will kill your plants very fast... Water dont be so mean!!!!!!!! thanks again sandman and to brian1975, these guys give great advice...

 

[MTF-Sandman]

As long as the temps at the canopy are good, you'll be fine with that light 1-2' over the tops. The closer you can keep it the better IME...it may even help control all that stretching that's going on with those gals.

Porgy - do you have any idea what you're talking about? There's nute burn on the leaf tips, the lower leaves are showing N tox (downward cupping) and they've already got a Fe lockout going on - why would you add more nutes to that mix?

 

[teljax]

Thanks again everybody for your concern and great advice. Last night I flushed them until my runoff was 6.5 and moved them outdoors.

The same clones in the same soil which were first put outdoors didnt show any of these problems. So maybe the flush and real sun will snap them back.

I moved the ones I had outdoors into the grow room and lowered the light to 2 feet above the plants with plenty of fresh air coming in.

Thanks again, I will be posting my results with this crop for anyone interested.