[ghuser113]

How long has this problem been going on? 6-7 DAYS
What STRAIN are you growing?Various:BLUE MYSTIC PAPYA CHYRSTLE What was the establishing technique? (seed or clone?)Seed
What is the age of your plants?2-3 WKS
How long have they been in the soil mixture they are in now?HYDRO
How Tall are the plants?30 inches - 7-8IN
What PHASE (seedling, vegetative or flower) are the plants in?VEG
What Technique are you using? (SOG, SCROG etc)N/A
What size pots are you using? (Include how many subjects to pot) WATER FARM
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)HYDROTON
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful*1.82 ml/L
How often are you feeding/watering?PUMP RUNS ALMOST 24 HRS
If flowering, when did you switch over to using Bloom nutrients? week one of 12/12
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)Micro, Grow,& then bloom.
What is the TDS/EC/PPM of your nutrients used?NOT SURE
What is the pH of the "RUN-OFF"?Dont know
What method of pH test was administered? ECO TEST
How often are you watering? 24HR DRIP
When was your last feeding and how often are you feeding?mentioned
What size bulb are you using?400W MH
What is the distance to the canopy?25IN
What is your RH Factor? (Relative Humidity)50-60
What is the canopy temperature?no canopy, room temp 75 f. N DAY
What is the Day/Night Temp? (Include fluctuation range)67night.75DAY
What is the current Air Flow? (cfm etc.)NONE AT THIS TIME Tell us about your ventilation, intake exhaust and when its running and not running ?N/A
Is the fan blowing directly at plants?softly oscillates on plants.
Is the grow substrate constantly wet or moist?WET ALL THE TIME
Is your water HARD or SOFT? RO
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? RO
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 chemicals.
I WAS AT 1/2 STRENTH GH GRO MICRO BLOOM LIL FLORA+ AND 1/2 STRENTH CAL MAG NOW IM AT 1/4 STRENTH WITH OUT CAL MAG AND EVEN LESS FLOR+ PH AT 5.7-5.8 BUT GOES UP OVER NIGHT TO 6.5 TO 6.6

[LJB]

I think they are lacking in nitrogen and the lamp can be moved at least a couple or a few inches closer.

[pineappaloupe]

I see multiple deficiencies...
Phos (the necrosis large spots and shriveling mid leaf), maybe some Mg (yellow leaf green veins)?
The weird dark necrosis ..

Looks like something is causing lock out. First guess is pH..

Also you are running a soilless hydro and don't seem to have a real handle on your PPM or pH....
Electronic meters...

Did you wash your hydrotron rocks off first?

[LJB]

Originally Posted by pineappaloupe

The weird dark necrosis ..

Does that leaf in particular look to you as if it is also soaking wet?

Maybe the OP has got some splashing issues with the feeder tube.

[M3@n_0n3]

I can't imagine coming home to have my grow decimated.

You guys are always looking for a solution!

Many props to you on your methods and determination!

[ghuser113]

Yes i washed them really well in a bath tub. thank for all your replys i think im screwed

[mitchyboy89]

No. If its a lockout, flush! The newer growth is still healthy at the moment, you have time to correct it!

[bluntt]

nitrogen def to me up the nutes,go for one tsp per gallon

[ibjamming]

I think they're hungry...go 3/4 strength or maybe full strength.