Light burn? Nut Burn? lockout?

[JosephMama]

Hey guys long time lurker could really use some help. I have run this before with the same chemicals at a different place and not had these issues before tho i was using a 600W and an AEROFLO then. Now i am using 1000W and ebb and grow buckets. The water here i found out was about 800 - 1000 EC so i recently (read last 4days) switched to RO Water ANyhoo here are the specs

Day Temps: 76F
Night Temps: 68 - 72F
Day Humidity: 60%
Night Humidity: 40%
Strain: Silver pearl (for sativa looking ones) / Albert Walker (Indica looking ones)

Using House and Garden Nutrients
Week 5 of flower

1000W light WAS 18" from tops now moved to ~24" from tops moved up at the same time i switched to RO

Old EC before RO was ~2600 - 2800 no lower than 2000 ever
Now EC is set at ~1900 (using RO water)


Thanks in advance for your expertise

1st pic kinda looks like phosphoruse def Possibly from hard water?

Others look kinda like light burn to me as i seem to remember phosphorus def starts on the edges and works its way in over time...

 

[kerlito]

i can see the pic

i can see the pic

this pic are really small , can u put another pic more big?

 

[JosephMama]

I try again

I try again

i'll try and post them bigger

 

[glockengold]

lockout deficiency, but why?

lockout deficiency, but why?

that looks lika a deficiency of some kind... first pic reminded of Magnesium-Def but since it starts from the edges and not between the veins i´m pretty sure thats not the case. Don´t look like nute burns or heatburns anyways. kinda hard to tell from the spect and pics. What´s your PH?

It looks like a lockout deficiency to me. Study some images of def´s and try figuring it out. I would check PH and EC imediately! In case of unstable values, correct them as soon as you can.

peace and good luck!

EDIT: After studying the pics further i can see that the yellowing starts inbetween the veins and the tips are curling upwards! so it´s possible that ist a mag def. Do you have lots of calcium in your water? too much of it locks out mag. And a PH under aprox 6.3 will lock magnesium out as well. So if you ave lots of nutes, especially GH chems, flush it!

 

[JosephMama]

Think you are right

Think you are right

Yeah i think you are correct after some more research

Fresh RO tomorrow then Nuts with CalMag

 

[razor ridge]

Joseph, how did you post the pics the second time? I've been trying to figure out how to do that with no success

 

[hazy]

Potassium, Manganese, Sodium also reduce availability of Mg. This thing going around about too much Ca. *shakes head* Sure, possible, but kind of off the wall. there are so many antagonisms between nutrients...
And Mg does not lock out below 6.3 pH. How about below 5.4?

 

[EvilTwin]

JM,
I looked at your pictures and there are clearly multiple deficiencies. The 3th pic shows leaf pattern similar to the one listed in Stitch's guide for Zinc deficiency. Fairly unusual so I'd say ph or some other systemic problem is severe enough to be locking out multiple nutrients.
Good luck,
ET

 

[glockengold]

And Mg does not lock out below 6.3 pH. How about below 5.4?

Sorry mate, didn´t see that it was a hydroponic setup.. thought it was a soilgrow.. if got 5.4 in soil you´re already burned. And too much Cal WILL give you problems with several nutrients.

 

[JosephMama]

Hard Water

Hard Water

Well like i said i had found my tap water to be extremely hard
between 400 and 500 PPM straight out of the tap

Add to that that i was running nutes as the same concentrations as i was at my other place and i think we have a problem.

I seriously think there is something bad in the water

 

[JosephMama]

Hey Razor Ridge didn't see you up there this is how i posted them that way (took me a sec too) when you reply if you hit quick reply or do not have the smilies listed next to your reply window click the 'Go Advanced button' then below your posting buttons you have another section called 'Additional Options' in there is a button labeled 'Manage Attachments' click that and choose the files to upload.

then you are Done and done hope this helps

 

[glockengold]

Well like i said i had found my tap water to be extremely hard
between 400 and 500 PPM straight out of the tap

Add to that that i was running nutes as the same concentrations as i was at my other place and i think we have a problem.

I seriously think there is something bad in the water

Ok, that sound pretty harsh... in my last house i had so much calcium that the humidifyer and mylar got completely white and covered with Cal, even some leafs where all white..It took about 4 grows and nutrient lockouts for me to realize that the hard water messed up my grows.. i finally went to a friends house with large watertanks to get good water. you can get a waterfilter to get clean water.they can be a bit expencive, but it´s woth it if you grow regularely.

Keep us updated!

peace!

 

[CalcioErba2004]

1000W light WAS 18" from tops now moved to ~24" from tops moved up at the same time i switched to RO

Everyone missed this. It's light burn mate. Why is everyone so quick to think that it's a nutrient deficiency or lock out?

1000w of light only 18" away from the tops and it will cook leaves. If you look close the edges are started to get really serrated and they are curling up. Clear signs of heat stress. Good move on moving the lamp up.

Being that the EC was so high there is a possibility that there is a lock out somewhere. Flush the system and start with a mix on the lower end like 1.5 EC and work back up to 2.0.

 

[EvilTwin]

Everyone missed this. It's light burn mate. Why is everyone so quick to think that it's a nutrient deficiency or lock out?

1000w of light only 18" away from the tops and it will cook leaves. If you look close the edges are started to get really serrated and they are curling up. Clear signs of heat stress. Good move on moving the lamp up.

Look at the leaf tucked way down in the center in pic 3...clear deficiency...or are you telling us that that's from light burn?
ET

 

[razor ridge]

Thanks man I appreciate it.....

 

[Mr. Hugeblunts]

Kinda looks like an iron def to me.

Leaves look like they are turning white not yellow

 

[EvilTwin]

Kinda looks like an iron def to me.

Leaves look like they are turning white not yellow

Hard to tell on the color...but judging by the distribution of the chlorosis, my thinking was zinc. See pix from guide attached.

Clearly there are multiple problems and light burn may have been one of them. But there's clear evidence of Mg+ and Zn or Fe++ deficiency. Could be related to the hard water...lockout sort-of situation, meaning it could be on the mend with the water correction.

So perhaps all is well now and just needs time.
Peace,
ET

 

[JosephMama]

yeah the pix are pretty crappy i took them with the phone on my camera

The leaves are turning yellow before they brown. The funny thing is that the browning starts on the widest part of each leaf before working up towards the tip.

Definitely not white they are turning yellow then to brown.

For sure part of the problem was light burn but there is more to it...

Razor No prob

 

[kaskar]

ro water you gotta use calmag

 

[hazy]

Glockengold: Apology rendered here. Yeah there are a lot of these antagonisms between nutrients. And you're right - High Ca and Mg in tapwater can slow down iron, K, B, Mg. (the main reason for this is because the pH of water high in Ca is high. Like mine which is over 8.) pHing to proper levels will keep excess Ca from being available in excess. also- Mg will be restricted below 5.4 pH.

I'm sure my tap water is higher ppm than 500. Most around here is 800+. And I don't get that going on.
I use hardwater micro from GH.

Anyway, since you're going with RO water and cal mag you should see improvement?

I think the main thing was a k def., but it's hard to tell, so many symptoms overlap in appearance. good pH won't necessarily help a K def. It's hard to know what nutes get taken up from your res and in what % to cause this trouble.


Hugeblunts~ iron defs show in the top leaves first.