Sick Plants? Large Pictures

[basement420]

Ok So this is my first serious attempt at hydroponics and I am running 5 gallon dwc buckets, 4 plants, under a 400W HPS, Genetics are Greenhouse Fem Trainwreck. The room is at 75* and 45% Humidity and lastly the PH is 6.0 and they have been growing since Feb 8. I am using GH Flora Grow/Bloom. There is an unsettling yellowing happening Through some of the leaves and the plants are a little droopy today with some leaf edge curling. What's happening to my plants?

 

[MynameStitch]

WHat is the water temps?
Is your equipment calibrated ph meter, ppm meter?
How often do you check your ppm and pH?
WHat is your ppms?
A lot of times strains in veg don't like the HPS under them, they make them grow slow and squat, the HPS orange spectrum is improper for them in veg, flowering is when you want the orange spectrum, in vegging you want the blue spectrum.


Your plants looks like they are getting a little too high ppms...... for one thing, they look like they are getting too much bloom, because the leaves at the top are getting a little yellow around the edges....... this signifies a lockout issue, zinc is very rare deficiency and only happens when too much certain amount of nutrients are available to the plant.
Does your pH rise or drop when nutrients are removed from the water by the plant?
How old is the plants?
What color are the roots?
What medium are they in?

 

[basement420]

The Ph rises over a few days time.
The plants are 13 days old.
The roots are white.
They are in Hydroton.

So are you saying that you believe I have a zinc deficiency? Should I mix new nutrient solution? I started them on a mixture of 2.5ml/gal of gro and bloom(their seedling suggestion), then on tuesday I decided to skip the mild growth suggestion of 5ml/gal of gro and bloom and jump to the growth formula of 12.5ml/gal gro and 2.5ml/gal bloom. Was this too far of a jump too quickly? Also I am not using FloraMicro as they were out of it at the store at the time, should I really try to get some of that into the system to help fix the problems?

 

[MynameStitch]

I woulf flush out the system and use a lower ppm soulution.

WHat is the ppms your system have now?

nd jump to the growth formula of 12.5ml/gal gro and 2.5ml/gal bloom

Yes, that is a huge jump, especially for the size plants you have.
For a proper ppm your system has, your pH should rise some every day if not the plants are removing more water out of the system than nutrients, when this happens your plants are at too high EC/ppms.

Do you have a ppm meter? If not you absolutly need one. Everyday your plants will remove nutrients from the water and you need to keep it stable, without knowing how much they are taking, when you go to add or fill up you could end up burning them again.

a pH meter and TDS pen is a must when growing hydro. You can't grow a good crop without them.

I would use all 3 but a smaller amount of bloom and if flora is anything like the regular line of GH, mix the micros first before the rest.
I would flush out the system and start it at around 2.5 ml of grow 2.5 ml of bloom and 4 ml of micros.

I take it you do not have a TDS/PPM pen correct?

 

[basement420]

No I do not have a ppm meter yet, probably going to pick one up tomorrow if they aren't super expensive. Can l remix my nutrients tonight at the lower level suggested by GH for mild growth of 5ml/gal of each gro, bloom, and then add the micro tomorrow after I pick some up?

 

[MynameStitch]

Well with the original line of GH you are supposed to use the 3 part and add mircos first...... What I would do for tonight is flush it out and add a little bit and get micros for tomorrow and a TDS pen. You can get one that is not real expensive that does the job, but you need to pick up some calibration fluid. Most of the pens come with 2 free bottles that is like a one time use though. You should keep it calibrated every 2 weeks max.

 

[basement420]

Thank you for all the help, i will do this and hopefully this will be a problem that goes away.

 

[MynameStitch]

It will, as long as you have a pH meter, tds pen, cool temps and you monitor them you should be just fine!

Your water temps are important so make sure your water temps stay cool in around 65 to 68.

If you get brown roots you will have problems.