Why am I having to use so much ph up to adjust ph?

So any idea why this is happening:

I mix power si, cal mag(gh) or b1(Floraflex), v2 or b2(Floraflex)in that order. Ph is about 4.9. It’s takes a shit ton of ph upto get in 5.8-63 range. Like 15-20ml.

I tried ph after cal mag and ph up worked easily and didn’t take as much(up to 6.5 with 10ml) Added the b1, b2 and dropped ph to 5.7. It took 10 ml of ph up to get up to 6.0.

All my previous grows would require drops of ph up or down. Never this amount.

any help is appreciated. My plants are healthy and happy but I want to make sure I’m not setting myself up for issues mid/late flower(currently at day 9 flower)(disregard the auto in the pic)

Try adding humic acid, it balances the ph for you, no joke.

What size is your rez? When was the last time you calibrated your PH meter? Have you cross referenced with a different PH meter or test strips?

SlappinAhoe said:

Try adding humic acid, it balances the ph for you, no joke.

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ill have to check that out. I’m using recharge which I believe has some in it but not enough to change ph much. The power si just drops the ph so hard. Works great. Wanted to get closer to 6.1-6.2 in flower. Takes like 20ml ph up to get to that range in 5 gallon bucket.

waterproof808 said:

What size is your rez? When was the last time you calibrated your PH meter? Have you cross referenced with a different PH meter or test strips?

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5 gallon bucket at the moment. I calibrated my pen at the beginning of this grow. I have tried 2 different ph meters and both show the same ph. I was thinking of upgrading my pen since it’s a cheaper one.It works for sure but probably not as accurate as others.

Try dr forest humic acid, its millions year old acids, i use a little in each watering and it gets me a perfect 6ph no matter what.

SlappinAhoe said:

Try adding humic acid, it balances the ph for you, no joke.

Click to expand...

humic acid won't do much of anything for you in a hydro environment. fulvic acid is what you want there. however it's not gonna regulate the ph, it just makes it so that the plant is able to uptake nutrients in a wider ph range.

Thanks for the advice. I’ll get both and try them separately. Hoping to break a pound for the first time.

Clear ammonia will quickly bring it up. I use potassium bicarbonate too. Or a Tums.

What about potassium carbonate?

Use nectar for the gods ph up. It is litteraly limestone and will stop drift