Dying Yellowing leaves in soil

[zefito]

Hello
First to thank you all for the great info on this site. I have spent hours reading this valuable info.
I have tried growing for 3 years about 5 grows with all similar outcomes.
I have opted for the organic grow with the biobizz range for not needing to check ph and ppm (which in the beginning I did do)
Everything is beautiful until around 4 weeks into veg, where a nitrogen deficiency seems to be always the problem( I assume). Now it hase arrived 3 weeks into flowering, yellowing leaves and drying out.I follow the biobizz feeding schedule.
Tap water ppm is 450ppm and cistern water is 150ppm much softer.
My temps are on the higher side, but could this cause so much damage?
Thank you
Zeus
Here is the set up

LIGHTS	DIY Vero 29 @ 150watts
TENT	LightHouse MAX 0.5m
VENTILATION	TD-160/100 TD SILENT
SOIL	Bio bizz All-mix
FERTILIZERS	1ml- 2 ml biobizz grow-heaven-Acti Vera
POT	14LT
TEMPS	26-29c
RH	40-50%
TIME	3 Weeks Flowering
WATER	1lt every two days (cistern rainwater)

[PRIMO]

You need nutrients to add in to your bio-buzz, add cal mag also. And start Ph. ing

[Weed Pharma]

Raise the lights until resolved.

[Toker1]

Are you following bio-bizz’s Recommended feed schedule?

http://www.organicagardensupply.com/wp-content/uploads/2012/05/Screen-Shot-2014-02-10-at-9.31.09-AM.png

[Redwasp]

Those ppm seem really low for a nutrient feed. I think tha average for soil is around 800 ppm. Some of my plants I go up to 1500ppm but 800 is about the norm. So I'm thinking you arent using enough nutrients. I have never used those before. And I'd ph the water if your adding any nutrients at all.

[Redwasp]

Oh I see that is not the ppm using nutrients. But I am guessing you need to add nutrients. I'm not familiar with that soil. Is it similar to kind soil or super soil? If not you are going to need nutrients and to ph your water.

[zefito]

Thanks y'all.. yes i have been following the biobizz feeding schedule with the complete line of nutes. The Biobizz all mix soil is advertised to be a ph regulated soil here http://www.biobizz.com/products/#all-mix
however i'am having second thoughts.The municipality water here, is from a desalination plant so, my guess it is RO, but with the old piping ppm varies today it at 300ppm.Is the water killing my plants??I don't know.I use the same water to irrigate my tomatoes plants, but that is outdoors.

[Toker1]

Is 300 on the low end or high end of the spectrum for your tap? Could be a water issue... sounds like the PH could be an issue as well. Since RO is expensive, might want to try adjusting the PH to the soil manufacturers specs. That way you are sure the plant is able to absorb all the nutrients it needs from the soil. If that doesn’t fix the issue... then yes water filtration might be the next step. Just make sure to add cal-mag to RO water before giving it to the girls

[OkieGrowkie]

I switched to RO water due to having really hard well water. The cal mag overload from the well water locked me out really bad before, so now I use RO every other watering. Throw a tablespoon of epsom salt in with your next feeding, its a great mag supplement that you cant overdue do. Ph is everything though

[Rwise]

I have been looking for why to add epson salts, thanx from another Okie!
Of the 4 water wells I have, I dont think I would trust any of them (without tests). maybe two of the shallow wells, the deep well is sulfur. Many bad wells near me as well, one is salt water, another has some kind of contamination, it cleans aluminum very fast, and made the aquarium fish grow double size!

[Mr.furley]

Rwise If it doubles the size of the fish maybe it would double the size of the buds

[Rwise]

Maybe, but what chemical is in it that does that!?! Also all of the fish died at a young age,,,
One water well near here, they were told to fill it with concrete, not to use it for anything!

[zefito]

Ok thanks for the info...ill give it a week and check back ..thanks again

[Colombo]

Zefito, How did thing go with the yellowing leaves? Did your changes make a difference and if so any Pictures? Hope it all worked out!!