Deformed top leaves problem

This is one of my dutch passion's white widows, almost 3 weeks after flowering and top growth seems sick.
Also fan leaves stems are extremely red comparing to the whole plant.

Lights are 600w HPS.

She's being fed with bio-bloom, bio-grow and top-max every other watering.

2.5 gallon pot, soil.

Lots of air circulation.

Thanks.

At first glance this looks like nitrogen toxicity. More information will help narrow it down.
What strength nutes are you using and at what ratios?
How close are the lights?
How often do you water and source (the pots should be very light when picked up before watering again)?
Temp and RH?
PH of water in and out?

I would guess you are giving her too much nitrogen, so use clean water only for a few weeks, do not flush just yet.

Here's a useful website for diagnosing symptoms.

http://www.greenmanspage.com/guides/plant_abuse.html

R. Godless said:

This is one of my dutch passion's white widows, almost 3 weeks after flowering and top growth seems sick.
Also fan leaves stems are extremely red comparing to the whole plant.

Lights are 600w HPS.

She's being fed with bio-bloom, bio-grow and top-max every other watering.

2.5 gallon pot, soil.

Lots of air circulation.

Thanks.

Click to expand...

I agree with the possible nitrogen toxicity issues...also could be an issue with pot size...2.5 gal is pretty small, unless you did a really really short veg period you are going to run out of space and be rootbound

Unfortunetly they vegged for alomst 39 days, I've trasplanted it today into a 5 gallon pot even though its a bit risky.

Also,
Water ph is as close to 6.5. I've measured the runoff ph a month ago, it showed 6.8.
Watering is every 5-6 days.
Nutes are currently: biogrow, biobloom and top-max, 3ml per liter.
10-15 inches away from the cooltube.
Temp, 62f-72f

how did the root structure look when you transplanted it? Was it wrapping around the container pretty badly?

Totally, but they seems white and healthy.
It looked pretty much like this:

Yeap that's routbound...did you break up the roots a little bit before repotting? Like run a razor down the sides of it and stuff? You want to loosen things up a little bit to get oxygen to the root system...but I'm glad you potted up...it will be much happier

massah said:

Yeap that's routbound...did you break up the roots a little bit before repotting? Like run a razor down the sides of it and stuff? You want to loosen things up a little bit to get oxygen to the root system...but I'm glad you potted up...it will be much happier

Click to expand...

Do you think it can cause them go back into veg growth because im two and a half weeks into flowering?
Its my first grow and I got the feeling that everything I do cause them strees.

naw the root system being suffocated wont cause a plant to go back into veg...it could stress it enough to hermi it, but you've relieved that stress now so hopefully that wont happen...just keep it going on 12/12 and you should be fine

Thanks, this info was very usefull, very appreciate it.

only reverting back to 18/6 light will put her back to veg. Get yaself a decent stress reliever and give every feed, 'superthrive' cheap and works wonders.