Nutes and PH

First grow (hydroponic using promix mycorrhizae)

And I've been talked into paying attention to my ph in my nute water. So I bought a ph-80 s

Tap water ph is around 8

Using iguana juice bloom at 4 ml a liter.

Mixing a gallon jug nutes + water = ph 5.5 or lower

I have ph up but it seems to take more then the clerk advised to get it back to the 6.2- 6.4 recommended. (I add a bit, shake and check)

Eventually I got the mix in ideal range but checking the left over nute water today, ph is up to 7.... is ph up just slow acting?

Any other recommendations when considering ph feeding?

I hear to things about RO to help resolve a lot of this but not ready to take that leap

jakeallenmissed said:

First grow (hydroponic using promix mycorrhizae)

And I've been talked into paying attention to my ph in my nute water. So I bought a ph-80 s

Tap water ph is around 8

Using iguana juice bloom at 4 ml a liter.

Mixing a gallon jug nutes + water = ph 5.5 or lower

I have ph up but it seems to take more then the clerk advised to get it back to the 6.2- 6.4 recommended. (I add a bit, shake and check)

Eventually I got the mix in ideal range but checking the left over nute water today, ph is up to 7.... is ph up just slow acting?

Any other recommendations when considering ph feeding?

I hear to things about RO to help resolve a lot of this but not ready to take that leap

Click to expand...

It is all about your source tap water. I guess you might be somewhere around 0,5 EC or even higher with that pH. That means it has huge buffer capacity and you just have to figure out to which point it bounces back. Than you know how much ph up you actually need, if you need it at all…

BTW I think that range is 5,8-6,2…

Bukvičák said:

It is all about your source tap water. I guess you might be somewhere around 0,5 EC or even higher with that pH. That means it has huge buffer capacity and you just have to figure out to which point it bounces back. Than you know how much ph up you actually need, if you need it at all…

Click to expand...

So then is the answer then to let the mix sit a day or so and test where it lands? If adjustment is needed I use a bit and wait another day, until I get used to where the buffer is?

I've seen charts with 5.8 though 6.4 depending on stage

jakeallenmissed said:

So then is the answer then to let the mix sit a day or so and test where it lands? If adjustment is needed I use a bit and wait another day, until I get used to where the buffer is?

I've seen charts with 5.8 though 6.4 depending on stage

Click to expand...

This is how I did it ended up not using stuff like pH up or down anymore. I might be just lucky about my tap and nutrients always stop around 6,2 which seems to be golden for coco as well as soilless.

edit: when you drift out of range and still need to adjust pH, than you are watering just right after pHing.

Bukvičák said:

This is how I did it ended up not using stuff like pH up or down anymore. I might be just lucky about my tap and nutrients always stop around 6,2 which seems to be golden for coco as well as soilless.

edit: when you drift out of range and still need to adjust pH, than you are watering just right after pHing.

Click to expand...

Thanks for the advice

Keep in mind not all promix is equal,theirs lime in it to bring ph up.I think I wouldn't worry about unless you see problems.The best ph test is stick a plant in and see lol.