Desperate for Help! Ram's horn's with Pics!

[phup]

Ok, I really need help on this one. My plants were looking heat stressed (bulging veins and ridges) and were curling down somewhat so I flushed all of my soil with 3X water. There was a lot of salt build up, runoff of 2500ppm, but after flushing they showed remarkable improvement. They have not been feed since, until today, and they seem to be deteriorating. You can see what appears to be the classic "rams horn", but yet they exhibit pale leaves and other N def signs.


SOIL:

How long has this problem been going on? 10 Days
What STRAIN are you growing? Nebula
What was the establishing technique? (seed or clone?)clone
What is the age of your plants? 4 weeks
How long have they been in the soil mixture they are in now? 2 weeks
How Tall are the plants? 12-16 inches
What PHASE (seedling, vegetative or flower) are the plants in? Veg
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot) 2 gallon
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) Pro-mix
What Nutrient's are you using? GH 3 part
How much of each nutrient are you using with how much water? PPM about 1100
*Knowing the brand is very helpful*
How often are you feeding? 2 feeds then a water
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) Micro, then veg/bloom
What is the TDS/EC/PPM of your nutrients used? 1200
What is the pH of the "RUN-OFF"? 6.0
What method of pH test was administered? Using Strips? pH pen? Pen
How often are you watering? When they dry out
When was your last feeding and how often are you feeding? Today, 2 feeds and a water
What size bulb are you using? 600 watts
What is the distance to the canopy? 24 inch
What is your RH Factor? (Relative Humidity) 60%
What is the canopy temperature? 83 F
What is the Day/Night Temp? (Include fluctuation range) Day 78-83, Night 73F
What is the current Air Flow? (cfm etc.) Sealed room.
Tell us about your ventilation, intake exhaust and when its running and not running ? Co2 monitor with sealed room.
Is the fan blowing directly at plants? No
Is the grow substrate constantly wet or moist? No
Is your water HARD or SOFT? 100 ppm
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? Tap
Are you using water from a water softener? NO
Has plant been recently pruned, cloned or pinched? NO
Have any pest chemicals been used? If so what and when? NO
Are plant's infected with pest's? NO


I'm really at a loss here, ram's horns mean N toxicity, but yellowing through out the plant mean deficiency. They also have some red blotches on the more yellow leaves, as well as signs of Cal deficiency with yellow spots on the ridges. All I can think is Nute lock out, but I just flushed a week ago. PLEASE HELP, I don't want to sacrifice my whole room!

PICS:

 

[phup]

Somebody help me out, please! I know there are some knowledgeable growers out there; come to my rescue.

 

[ReverendRFB]

its possible that it could be some kind of Fungal problem? Hard to say brother.. Everything else sounds good.

 

[scaramanga]

Try backing off on the nutes to about half of what you were using(500-600). Instead of 2 feeds then a water, try feeding every other watering, and make sure that you allow some runoff(about 30% should be sufficient). Also remember to calibrate your Ph pen, and Ph adjust your feed water.

Good luck.

 

[OAKSTERDAMSEEDS]

Yes back off the nutes a bit, give it some superthrive,

However the nebula leaves have a natural tendency to curl down not upward.

This is inherent to the strain from my limited experience growing it.

Strains like Blueberry also have claw leaves naturally.

It is not a sign of poor tugor (internal water pressure)or p k nutrient overload.

Some people have inny belly buttons some people have outies.lol

Some plants leaves point up some plants leaves point down.

Nebula seems to point down wilty like.

Try purple Maxx to really blow it up! It will go purple and completely cover in trichs.

good luck I hope my limited experience with nebula helps.Just got it 3 months ago myself.

Mine is almost ready to pick,I can't wait!!!

Get your room temp down by ten degrees and that will help a lot, Nebula seems a bit sensitive to heat and has a tendency to get P M

so a hot grow room will be a stress and throw off the plant's metabolism and the ability to process nutrients at optimum levels.

 

[Row]

First post,

I dont make a habit of it, however i had to chime in here,

I have seen plants that look almost identical to pic 3 but with more yellowing, large yellow spoting from co / co2 problems, in a seeled room, solved by changing the burner and running a dump fan every 4 hours for 15 mins. Seems the burner wasnt burning cleanly though it was hard to tell from the flames.

Infact imo every sealed room should have a dump/extractor fan, this should be run at night to vent the excess co2 as the plants give off and do not use co2 during the night, but do need o2.

Ever notice how if you go into the sealed room at night the co2 level can be very high even though the burner hasnt run for 8 hours..... vent that room at night imo, works for me, i may try and make enough posts to put a pic up to show im not a noob.

Could also be to high ppm and over feeding/salt build up, 2 feeds 1 water at 1200 ppm especially when the plants are struggling is alot.... if there not growing and you feed 1200 ppms 4 times and water twice with little run off where is that food going?

again i could be wrong but from my experience vent at night in a sealed room, even if its just for 1 hour every 3 hours.

 

[Row]

http://www.icmag.com/ic/showthread.php?t=118387

Pic for noob proofing

 

[Kindman69]

Sealed room, huh
Check for 'off-gassing' FIRST! I think 'Row' above is on to it, even though I think it is off-gassing related and not burner. Check the 'off-gassing' thread and keep in mind it does not have to be a tent, it just be anything else that produces a variety of DBP.
Easy test though Take a plant out and see if it improves within a week before you do much else

Kindman

 

[Row]

Interesting, ill take a look at the off gasing thread,

Thing is though im sure it was the burner, the problem happened the moment i turned the burner on, like over the there day my night, also it was a different make of burner to the ones i use normally, normally use blueox, a friend had the same different burner and had what looked like a similar problem, this is what led us to believe it was the burner.

Soon as i swaped the burner the problem went away, i was already venting at night with the differnt burner, and another clue was that they looked slightly better as the night went on, from the venting.

I now vent the room for 15min twice a day anyway to remove the stale air and as a precaution, im currently looking at puting a small 4" intake whole with a flap thing that closes when the dump fan is off, just to give the air somewhere to come from, so the fan dosnt struggle sucking the air through a few cracks in the door and floor etc.

This could be something different and i wias i had pics,

There was a thread here from a guy a year or more back that swaw co2 was causing him problems, i couldnt find it though.

Row

 

[Kindman69]

Interesting, ill take a look at the off gasing thread,

Thing is though im sure it was the burner, the problem happened the moment i turned the burner on, like over the there day my night, also it was a different make of burner to the ones i use normally, normally use blueox, a friend had the same different burner and had what looked like a similar problem, this is what led us to believe it was the burner.

Soon as i swaped the burner the problem went away, i was already venting at night with the differnt burner, and another clue was that they looked slightly better as the night went on, from the venting.

I now vent the room for 15min twice a day anyway to remove the stale air and as a precaution, im currently looking at puting a small 4" intake whole with a flap thing that closes when the dump fan is off, just to give the air somewhere to come from, so the fan dosnt struggle sucking the air through a few cracks in the door and floor etc.

This could be something different and i wias i had pics,

There was a thread here from a guy a year or more back that swaw co2 was causing him problems, i couldnt find it though.

Row

Yeah, if it was off-gassing' related the problem would not have gone away by swapping the burner
I think you are looking for a back draft damper! I use the white one from Home D, don't get it it sucks! It has far too much static resistance. I'm in HVAC and we use:

http://www.westsidewholesale.com/me...9eda06f020e43594a9c230972d/7/1/711193-1_9.jpg

Fantech makes some nice ones with very soft rubber seals. They cost like $20 a pop. Don't forget that you should have 2 of them so bugs entering will not become a issue.

Kindman