PH issues in H&G line

[kratosxxl]

so ph will drop from 6.0 to 5.5 in 24 hr , their support said its normal and will stabilize down the road , anyone experienced similar thing ?

 

[93OG]

What’s the timeline? When you first mix it drops or after a few days?

 

[kratosxxl]

What’s the timeline? When you first mix it drops or after a few days?

after one day . when i first mix it it usually raises (im mixing in 100 gall bucket before adding to rez)

 

[93OG]

I run hg aqua flakes with 1 ml/ gal cal mag. When I first mix mine the ph rises for about a day, then it’s stable for 4-5 days, then starts to drop. If I add cal mag when it starts dropping it stabilizes again for for a day or two until res change.
what type of water do you use? Cal mag?

 

[kratosxxl]

So filtered tap. Initial ppm 250. Aqua entire line with calmag. Mine similar to urs except when it starts to drop it doesnt stop untill water change. I add ph up for couple of days then switch to silica then back to ph up

 

[kratosxxl]

I run hg aqua flakes with 1 ml/ gal cal mag. When I first mix mine the ph rises for about a day, then it’s stable for 4-5 days, then starts to drop. If I add cal mag when it starts dropping it stabilizes again for for a day or two until res change.
what type of water do you use? Cal mag?

But why cal mag will stabilize it ?

 

[93OG]

Not sure why, I figured it’s either the solution using the cal to neutralize the acid or it’s something to do with the plants metabolism and what it releases back into the solution. 250 is pretty low unless their seedlings. Maybe at 250ppm there aren’t enough buffers in solution? Before co2 I was vegging around 350, early through mid flower about 450. With co2 I’m at 650 in veg and 800 in flower.

 

[kratosxxl]

Not sure why, I figured it’s either the solution using the cal to neutralize the acid or it’s something to do with the plants metabolism and what it releases back into the solution. 250 is pretty low unless their seedlings. Maybe at 250ppm there aren’t enough buffers in solution? Before co2 I was vegging around 350, early through mid flower about 450. With co2 I’m at 650 in veg and 800 in flower.

no sorry . 250 is just water ppm , im in 2nd week of flower ppm is 1100

 

[HaroldRocks]

That's not really much of a drop....do the plants look ok? if they do, i wouldn't worry

 

[93OG]

Only other things I can think of are possible infection in the res or if your ppms rise try lowering them to where ppms stay constant or drop slightly.

 

[kratosxxl]

That's not really much of a drop....do the plants look ok? if they do, i wouldn't worry

yeah they look great

 

[kratosxxl]

Only other things I can think of are possible infection in the res or if your ppms rise try lowering them to where ppms stay constant or drop slightly.

as of today ppm started to drop slightly with top off turned off

 

[HaroldRocks]

yeah they look great

if it ain't broke, don't fix it - don't worry about it