Is my tent off-gassing?

[420chef]

I have a 36x20x62 grow tent I bought off ebay 2 months ago from ebay seller gyosupplies

heres a pic of whats wrong with my plants 25 days in..
heres a pic of her whole:

heres a closeup of the browning/yellowing leaf tips

How long has this problem been going on?
2d
Are you growing in a PVC grow tent? (example: Hydrohut or any other non brand tents)
not sure.. i bought the tent recently and its lined with a reflective mylar interior. to my knowledge those ones are the newer models.. however when you buy stuff off ebay ya never know.
What system are you running? (DWC? Ebb flow? Aero? Water Farm? Flood Tables? and so on...)
Hand water
What STRAIN are you growing?
easy ryder
What was the establishing technique? (Were the seed or clone?)
seed
What is the age of your plants?
25d
How long have they been in there mixture they are in now?(coco,soiless etc..)
14d in the 3g container
How tall are the plants?
6"
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
flower
What Technique are you using?
not stressin em period
What substrate/medium are you using?(Hydroton, RockWool etc.)
FFoF 60% 40% ff lw - hydroton lined bottom (3g container)
What is the Water temperature?
room
What color are your roots? White? Brown? Are your roots slimy?
What Nutrient's are you using?(If growing soiless)
ff trio + calmag + botanicare sweet (given once every other watering, never at the same time as calmag)
How much of each nutrient are you using with how much water?
1/2-3/4 recommended dosage
*Knowing the brand is very helpful*
How often are you feeding? (If using soiless)
once a week
What is the TDS/EC/PPM you are using? water ppm is 40-45
What is the pH of the "Tank"?
6-7
Are you sure your calibration is correct on your equiptment?
When was your last watering?
yesterday
What is your water temps?
When was your last feeding change? (ie. grow-bloom-micro-additional)
yesterday just added tiger bloom but leaves were like this before i added, today they started to get a lil worse
How often do you clean your system: example: Flush out water replace with clean water and nutrients?
run off
What size bulb are you using?
90w UFO led + 2x 55w 2700k
What is the distance to the canopy?
6"
What is your RH Factor(Relative Humidity)?
40-50%
What is the canopy temperature?
77
What is the Day/Night Temp? (Include flucutaion range)
day 75-88 night 70-75
What is the current Air Flow? (cfm etc.)
vortex 4" 170cfm
Tell us about your ventilation, intake exhaust and when its running and not running ?
Is the fan blowing directly at plants?
yes
Is your water HARD or SOFT?
soft
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
tap 40ppm
Are you using water from a water softener?
no
Has plant been recently pruned, cloned off of or pinched
no
Have any pest chemicals been used? If so, What and When?
yes neem oil sprayed on the exterior of the pots just incase
Are plant's infected with pest's
nope

 

[freeride high]

not possible to be nute burn?

 

[420chef]

definitely a possibility.. however before it started to turn yellow its last watering was a big bloom to plain water flush

 

[freeride high]

big bloom to plain water?
any more info on what youve been feeding it?

 

[420chef]

i put in big bloom.. then i did a ph run off and noticed it was 7. so i gave it a plain water flush at ph 6.5 afterwards. I read that you could use big bloom to flush the excess salts, and the last time i grew i realized thats one of the reasons i nute burned with the fox farms trio is i didnt flush until the end. The next watering i plain to give plain water, but its usually 4-5 days per watering.

 

[420chef]

i think the ph is too low now.. is it okay to flush with tapp 6.5 water now, how can i water without OVER watering?

 

[chuckyoufarley]

becareful messing with the ph ,thats what the off gasing does is make it look like a ph prob

 

[freeride high]

ive never heard of using nutes to flush, that looks like your problem. why were you flushing anyways? your feeding schedule is good.
i think you should just kick back and wait, i dont think it will get any worse if you just keep watering normally for a week or two. wait for it to ask for food before feeding again.

 

[420chef]

ive never heard of using nutes to flush, that looks like your problem. why were you flushing anyways? your feeding schedule is good.
i think you should just kick back and wait, i dont think it will get any worse if you just keep watering normally for a week or two. wait for it to ask for food before feeding again.

i was flushing because the run off was above 7. =/ oh well, i usually end up hurting my plant trying to give em nutes. i figured i could do no wrong using organic fox farm stuff.
thanks for the help, I'll try and wait it out, all though the yellowing of leaves at bottom has gotten worse.