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Smokey Purple Nugs

Help

guys i am fairly new to growing and have an issue, i am in 12 ltr smart pots with bio bizz all mix soil. I am feeding Canna Terra Vega and Calmag i use half strength feed at 25 ml per 10 ltr water from the tap. approx 5 ml clmg once . i leave water 24 hrs to de chlorinate.

The ph is 7.4 out the tap Once i add terra vega even in small doses it drops my ph to like 3.5 . I know soil has a buffer but 3.5 is surly too low ? i added ph up to 6.2 as stated on the biobizz bag ! but I am getting either what looks like ph swing  ?  nute lock out  ?  as symptoms are plenty from dark green shiny leaves at the bottom which indicate abundance of N But with faded newer growth and patches i will try to add pics shortly look hungry but if i feed the problem worsens week 2/ 1/2 of veg should i flush hungry plants or add small feed to the flush ? any help appreciated 

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As a beginner take what I say with a pinch of salt but allmix has about 3 weeks food. 

I believe folk will put their babies in allmix but 50/50 mix with perlite. I use light mix during veg because I’m a pussy and I’m scared the soil will be too hot. But you shouldnt really need any feed right through veg unless it’s root juice or rhizo or something like that. 

If yer post some pictures some of the regulars may be able to help a bit more.

good luck owd fella.

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On 03/02/2020 at 3:35 PM, Smokey Purple Nugs said:

i leave water 24 hrs to de chlorinate

 

This is a fairy tale. Majority of water treatment uses a group of chemical compounds called Chloramines. This can only be removed using some types of reverse osmosis / carbon filtration. Only free Chlorine is released by leaving water to stand which constitutes very little of the overall Chlorine content.

 

I'm a soil grower too, for me pH is irrelevant. Majority of commercially purchased compost is slightly acidic, very slightly too acidic. With natural weak carbonate bases dissolved in water over the period of the grow one compliments the other to achieve optimum pH. If as I suspect you're testing using a cheap pH meter (possibly calibrated, unlikely to be controlled - two different things) I'd suggest the reading isn't accurate. Unless your using RO water (no buffering capabilities) dissolved carbonates will naturally resist (to a point) such a huge pH shift especially if the only addition is plant food specifically for cannabis.

 

From the limited information you've provided I'd suggest the above is a red herring. I'd suggest messing about then re-correcting pH may be doing more harm than good. Just not needed in soil. Post some pictures :yep: else it's all guess work. In soil 'flushing' unless your one / two weeks from cropping really should be avoided. 

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