leaves problems,over,lack or lock ? help me please

[shoegazer]

How long has this problem been going on? about 2 weeks
What STRAIN are you growing? Dutch Dragon and Nebula
What was the establishing technique? (seed or clone?) seed
What is the age of your plants? 55 days
How long have they been in the soil mixture they are in now? 40 days
How Tall are the plants? half meter and 1 mt
What PHASE (seedling, vegetative or flower) are the plants in? flow
What Technique are you using? (SOG, SCROG etc) 7 plant in 5x5 feet tent
What size pots are you using? (Include how many subjects to pot) 1,7 gallon or 6,5 lt.
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) biobizz light mix with 5% of worm casting
What Nutrient's are you using? advanced nutrients micro and bloom
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* Biocanna 1ml x litre
How often are you feeding? 1 time yes 1 time not
If flowering, when did you switch over to using Bloom nutrients?after 12 days
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) ??
What is the TDS/EC/PPM of your nutrients used? no pen sorry
What is the pH of the "RUN-OFF"?actually is 6.5 in veg was from 7 to 6.7
What method of pH test was administered? Using Strips? pH pen? vdouble check ph pen and GH liquid test
How often are you watering? 2-3 days
When was your last feeding and how often are you feeding? 2 waters ago
What size bulb are you using? 600HPS
What is the distance to the canopy? 19-23 inches
What is your RH Factor? (Relative Humidity) 30-40%
What is the canopy temperature? 75
What is the Day/Night Temp? (Include fluctuation range) 66 night -75 day F
What is the current Air Flow? (cfm etc.) 1 big fan and 1 vk 150 for extraction
Tell us about your ventilation, intake exhaust and when its running and not running ? 24 h always,not direct
Is the fan blowing directly at plants? when it turns their direction
Is the grow substrate constantly wet or moist? not so wet and not so moist
Is your water HARD or SOFT? hard
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? yes
Have any pest chemicals been used? If so what and when? 1 time i sprayed plant soap with pine oil
Are plant's infected with pest's? not now but in the past i notice some cochineal

hello guys i'm new to the forum,i needed some help with my garden,i started these babies from seeds,Dutch Dragon and Nebula,sprouded directly in 0,3 gallon pots with light mix and 5% of
worm casting,after 2 weeks i switch from cfl 200W to 400W MH, and starting to feed a bit with N27 Bionova,after 4 days i transplanted in 1,7 gallon pots,in 1 month of veg i feed them 2 times and give tap water in the beginning at ph7 then 6.8 - 6.7,the babies was perfect,i switch to 12/12 and continue
to use MH for 4 days,i changed bulb and put a 400 hps,after 10 days of 12/12 plants continue to stay healthy,i cant transplanted them in bigger pots because i had 12 babies in 5x5 feet tent,in some days i kill some males,i decide to switch to 600 W hps and HERE start the problems,at the beginning i use it at 1.3 - 1.6 feet with sputnik reflector,temperature was 75F day, 66F night,humidity is 30-35 %,in veg was 35-40,the problem is that when i switch to 600,after 5 hours i notice that they started to make clear,seems that the dont like the 600W,atm i lost a lot of green in the leaves and tips bend up and dry up,i think that was magnesium def so i sprayed 2 times 2% epson salt on leaves and adding 1% on water for 3-4 times,in flowering i feed approx 1 time yes and 1 time not,with low-medium dosage of Biocanna Flores and i give them 1 time a guano tea,half spoon for litre (10ml approx),ph is 6.5 atm and every time i double check witht pen and GH liquid test,i post some pics below,help me please

 

[DiscoBiscuit]

Thanks for giving all the info.

Although your info is detailed, you didn't mention how much base nutes you're feeding. I'm gonna throw out a preliminary guess and say lack.

You're plant is getting bigger and the light is suddenly much stronger, two elements that suggest increasing nutes.

If you use additional supplements before you get things dialed in, it makes it hard to determine which nute(s) is/are causing the trouble. Try sticking with the base nutes at first, adding supps individually and learn which one does what to your plant.

 

[shoegazer]

Thanks for giving all the info.

Although your info is detailed, you didn't mention how much base nutes you're feeding. I'm gonna throw out a preliminary guess and say lack.

You're plant is getting bigger and the light is suddenly much stronger, two elements that suggest increasing nutes.

If you use additional supplements before you get things dialed in, it makes it hard to determine which nute(s) is/are causing the trouble. Try sticking with the base nutes at first, adding supps individually and learn which one does what to your plant.

thanx for fast reply mate and sorry for my english,i dont know what you mean for supplements,i adding to water Bionova X-CELL from the beginning,in the last time i use superthrive added with nutes or water,4-5 drops every litre,1 time a week,i use Cannazym,like base nute i use Biocanna Flores atm,i try 1 time to give them a GH tripak 0.4 - 0.6 - 0.9 ml on 1 litre,but i dont fix the problem is good idea transplanted them in Plagron Bat-Mix at 4 week of flow?because plant seems too bigger for these pots or better give them a good dogage of Biocanna Flores?i think to have constant 800-1000 ppm of CO2 because i live and sleep in the same room where i have the tent

 

[DiscoBiscuit]

What Nutrient's are you using? advanced nutrients micro and bloom
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* Biocanna 1ml x litre

??? The second question asks how much you use in the first question. How much AN micro and bloom are you using?

It will help if you familiarize yourself the differences between base and supplemental nutes. You've listed more nutes than I'm familiar with and it's my opinion you're making things difficult with so many variables.

Superthrive is not fertilizer. It's anything but. In minute doses, it's a root stimulant. In high doses its not unlike agent orange, a defoliant.

Check out the ST label. It says to add a drop per gallon of water. 4 or 5 drops per liter is actually about 20 times stronger than you need.

Do a keyword search on Superthrive. You might be surprised at the results. Lots of haters.

 

[shoegazer]

??? The second question asks how much you use in the first question. How much AN micro and bloom are you using?

It will help if you familiarize yourself the differences between base and supplemental nutes. You've listed more nutes than I'm familiar with and it's my opinion you're making things difficult with so many variables.

Superthrive is not fertilizer. It's anything but. In minute doses, it's a root stimulant. In high doses its not unlike agent orange, a defoliant.

Check out the ST label. It says to add a drop per gallon of water. 4 or 5 drops per liter is actually about 20 times stronger than you need.

Do a keyword search on Superthrive. You might be surprised at the results. Lots of haters.

sorry mate i copy and paste the form and forgot to cancel advanced nutrients....my base nute is Biocanna and rarely i add them tripak,only 1 time,yes sorry i imagine that superthrive,x-cell,cannazym are not supplements,i had some people use more than 1 drop every gallon,anyway now i try to give them 2ml x litre of Biocanna and i hope to don't do overfert,the leaves that take more light,had the problem,low leaves are ok,and also other babies that take less light to the border of tent stay better,than plants that stay in the center of tent.Thanx

 

[DiscoBiscuit]

Oh, ok. Sorry man. Now that you mention it's only on top, I may be wrong to assume they're underfed. The plants have nice structure, I can tell you've done a good job before they faded.

On a typical day you would have more than one opinion to work with. I hope others will help you out as I'm not too familiar with top down deficiencies. Any problems I experience are usually at the bottom, lol. I also have a small lamp and can't offer any info about safe distance between bulb and canopy for a 600.

Here's a good link to bookmark. It's a compilation of pics and info associated with sick plants. It's a lot of info to read at once but you can keep it for reference if you want. The pics in the thread are good for a quick comparison. Hope it helps.

http://www.icmag.com/ic/showthread.php?t=11688