Ok Ill try that Mclovin ,that makes sense .

Thanks for the advice

That is almost certainly a micro-nute deficiency. It is presenting as lack of Zinc, though Zn, Fe and Mg deficiencies usually occur together. Usual cause is high pH locking out the elements, though there are other causes.

Your spring water may be high in calcium which can cause some problems especially if there is added calcium in your additives.

I don't have any experience with BioBizz, but have heard good things about them. I doubt it's your nute blend. I would be leaning toward contaminated water and a need for lower pH... Some blends require pH in the 5.8-6.2 range, some 6.4 to 6.8... But if you are going to adjust the pH, do it gently and slowly... pH shock is just as bad as a deficiency in most cases.

Try a watering with a bit of Epsom Salts to add some Mg and see if that helps green them up a bit. If so, it will be a issue with availability of micros...

Hey Fred thanks for the info .I looked about to see how much salt to put in per litre of water but as normal I got everything from a pinch per 5 litres to 1 teaspoon a pint I dont want to add too much so what would you say was ok ?

I keep the PH at 6.8 same as the soil .The run off is 6.8 also so dont think its a PH problem.

A quarter teaspoon in a liter should be fine....

Even at 6.8 you could be having some issues if the micros are at a low level to start with...
Have a look here...
http://www.eutechinst.com/techtips/tech-tips5.htm

There is a chart showing the relationship between pH and availability of nutrients. There might be something in there that rings a bell for you.

Although testing runoff will show a gross problem with the soil, a minor one will not show up that way. If there are buffers in the soil that react slowly, your runoff will be the same as the water going in, but you could still have a 7.5 or so rootzone... The issue shown in the pics is either not feeding properly or a pH issue.

I have seen doing some digging about and this is what BioBizz claim about there soil

With Biobizz® soils, the EC and pH value do not need to be measured, as should when using a mineral medium. Biobizz® organic mediums and nutrients are not made of mineral salts but organic bound elements, which are not measurable. The medium has a natural pH form; this will keep the soil in balance by itself

What do you think ?

I believe Biobizz poundz as I ran this without the slightest problem in the world throughout flower


For each gallon of RO water

5-7 mL Technaflora Magical (not totally organic)
6 mL of Botanicare Liquid Karma (not organic either)
5-7 mL of Biogrow
5-7 mL of Biobloom
5 mL of Roots Organic Ancient Amber


all of that and no ph'ing ever in pure coco and not a problem but RO water was used of course and Co2 was 1500ppm at all times so if there was a problem it would have showed but not even a glitch.



edit: I aimed for no runoff as well

Fred's got it...mag and zinc would be my guess. Short flowering plants burn through these micro's quickly. In hydro even quicker. I would pick up cal/mag, cal/max and start implimenting into your cycle a week earlier from when you noticed it.

Correcting this minor deficiency at the right time in your cycle with short term strains will result in explosive growth instead of the stall.

Good luck

I say listen to Fred.

Alright... Thanks for the support folks...
I'm not trying to diss BioBizz, but there is certainly an issue here. So if it can't be pH and you are following the directions (assuming they are correct) then the next thing is water. Spring water is great for drinking but it seems that you have some contamination issues with it. Try to get a few jugs of RO water from the grocery store (at least around here... at about $3.00 for 5 gallons) and use that. The mag supplement is still a good thing, as mentioned... There really isn't anything else unless you have someone there that is dumping their old coffee or sock squeezin's into your grow... LOL...

Peace...
Fred.

Ok thanks for all the help guys ,I really appreciate it .

I was using bottled still natural mineral water for all my grows before with no real issues .I started using water from a natural spring thinking it would be better but I guess I was wrong .We have been getting a lot of rain fall which could be affecting the water also .I see a garden centre sells RO water for £3 per gallon or I could go back to the bottled water at £1 per gallon .I will also try getting some cal/mag supplement.

Thanks again people ill let you know how the plants react to different water .