Growlearn24 said:

So I’m very new to growing and am experiencing issues with PH at the soil.

I thought to increase the PH of my water to 11 and fed these to my 7 plants.

I then googled and ph is the equivalent to ammonia solution

Luckily my plants haven’t died but they are very weak.

My question is if the plants don’t die will they be safe to consume?

I’m currently vegetating and will continue for another month to try and resolve the issues with PH and the deficiencies the plants have

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Observationist said:

What kind of "soil"?

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Growlearn24 said:

Biobizz light mix

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Observationist said:

Just flush a few times with your 7~ph tap

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Growlearn24 said:

Okay thank you. Would you suggest using nutrients too? As my plants are badly affected by calcium and magnesium deficiencies

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Observationist said:

You could use a little Epsom salt, wouldn't be a bad idea to give a small dose of nutes.
Organic or synthetic nutes?

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Growlearn24 said:

Not sure if they are organic or synthetic.The nutrients are House and Garden if you’ve heard of them before

I was thinking of using dolomite lime to try and sort the PH issue

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Observationist said:

You're biobizz soil should already have pH buffer

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Growlearn24 said:

The strange thing is my ph run off is at 5.5 and some are even lower. I’ve no idea what’s going on

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Observationist said:

Let it dry back and try again once it does.

It should be fine.

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Growlearn24 said:

I’ve done that. Left it about 4 days to ensure everything was dry and still very low PH at the roots.
Could it be the nutrient line I’m using? As it’s not biobizz’s own chemicals?

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Cirroji said:

please get some pics up, a lot of things are just binned at Ca&Mg but are other things.

ph@11 is a very strong base, whenever a flush is recommended it's usually always meant to clean/clear the soil so no nutes.

if it's coming out @ 5.5 the buffer may be working,or your tool is just out of whack. did you calibrate your meter before using it? little things sometimes has goofy results.

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Cirroji said:

All i see is new growth that is slightly more yellow and is very common in the beginning stages of flower when it's "stretching"

i wouldn't say there is any issue with CA or MG - was the lighter colors giving you that impression? they look great.

lemme guess, around the first week of flower?

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Eledin said:

Isnt it weird that the runoff is 5,5 when the soil is 6,5? I used light and all mix from biobizz before. Your base nutes from house and garden already have calcium, magnesium and PHOSPHORIC ACID, which is a ph down chemical. It could explain your low ph in the soil.
This the composition of soil A+B:
Derived From: Calcium Nitrate, Ammonium Nitrate, Nitric Acid, Potassium Hydroxide, Phosphoric Acid Anhydride, and Magnesium Sulfate

Soil Nutrient A & B (together) by House & Garden direct from Growers House

Never before have nutrients and soil been so well attuned. Soil is a unique composition ensures that soil and nutrients are used to their full advantage. This gives the plant optimal strength during the growth and flowering periods.

growershouse.com

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Growlearn24 said:

Okay I didn’t realise this when researching chemicals. What would your suggestion be to combat this issue?

I’m thinking of adding dolomite lime to see if that improves anything

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