Dailypunch21
Member
Anyone know why my ph would slowly be dropping after a reseravoir change? Plant seems to be eating and ph will raise but after I correct it, it continues to drop..
Why is my ph slowly dropping after few days of reservoir change?
- Thread starter Dailypunch21
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- dwc problems
projectinfo
Well-Known Member
Some pictures would help.
Whats your waters ph that you use from the tap ?
What nutes are you using what pphm are you at?
Pictures would help.
Dailypunch21
Member
Using ro water, cultures solutions nutrients, ppm is 320, water is 66 and ph is 5.9. I am in week three of flower the plant looks good but really small buds..
projectinfo
Well-Known Member
Ah, the r/o water.
You going to have to add some calmag first to bring up your water to 150 ppm befor you add anything at all .... Even if you plan to add more calmag you have to have a base of 150ppm to buffer ypur water.
Espsom salts for your bath also work.
You going to have to add some calmag first to bring up your water to 150 ppm befor you add anything at all .... Even if you plan to add more calmag you have to have a base of 150ppm to buffer ypur water.
Espsom salts for your bath also work.
Dailypunch21
Member
There’s calcium and mag in the nutrients already.. no purple stems or signs of calcium deficiencies.. I’m dont know what else would cause this..
rkymtnman
Well-Known Member
root rot usually causes pH drops
projectinfo
Well-Known Member
Do you change your res every week?
Is your source water dirty.... Maybe a uv light may help haha
Is your source water dirty.... Maybe a uv light may help haha
Dailypunch21
Member
I do Res changes every week. I’m going to get some h202 and try and clean up the roots to see if that will help. When I do my res changes ph will rise and I have to add a lot ph down but after I add the down to about 6.0 it will never rise again only start dropping a few hours later...
projectinfo
Well-Known Member
Yeah it helps to use some kind of benny or h202
I used hydroguard last time and it worked great
This time im going to try hygrozyme
rkymtnman
Well-Known Member
try this instead: southern ag garden friendly fungicide. same strain as hydroguard but a million times stronger and much cheaper.
projectinfo
Well-Known Member
not available in canada, what elese is there?
rkymtnman
Well-Known Member
you can't order off ebay? that sucks.
that is the only product i've used since i stopped running sterile res with HTH pool shock.
projectinfo
Well-Known Member
yeah i looked you cant get it . they wont go cross border.
and now you cant get hydroguard either . anyone know of any alternatives?
fridayfishfry
Well-Known Member
I added noob kelp tea to my hydro and my pH dropped to "below 4"
in my case it was the leaf matter in the res
I agree, h2o2 and/or clean that res if you got funk
in my case it was the leaf matter in the res
I agree, h2o2 and/or clean that res if you got funk
fridayfishfry
Well-Known Member
plants will grow just fine in "below 4" pH water by the way lol
just fine may mean actually not that great and shitty compared to if the pH was correct but they will survive
just fine may mean actually not that great and shitty compared to if the pH was correct but they will survive
Mont@n@
Well-Known Member
sorry for the hijack but it works for you?
im having stem rot and the only way to control it is with pool shock or changing res every 3-4days.
i guess i will get some
thanks
rkymtnman
Well-Known Member
yep, it works just as well as a sterile res IMO.
i run waterfarms (2 gal res) and i give them 1mL (way more than needed) once a week
My Name is Mike
Well-Known Member
What do you use to raise it? I use baking soda as my PH up and it works great to up the PH and stabilize.
It also sounds like you need to mix thoroughly and stabilize before you run the water in your system. I've noticed I had issues when I spiked my water with my cocktail and ran it vs. allowing my water to mix thoroughly, stabilize then hook it up. Just a shot in the dark.
Def take a look at the roots if you can and see what you've got going on.
You may already know this, but in case you don't.... RO water, cal-mag, nutes, PH. Despite your nutes having cal-mag, I'd recommend using some on the side to have a buffer in your water prior to your nutes. My .02
a senile fungus
Well-Known Member
How large is your res? How much water is being used after a week before the Res change? You said your pH is around 6.0 after res change, at what EC/ppm? What is the EC/ppm of the solution when you notice that the pH has lowered through out the week?
Thx.
I am wondering if the plants are drinking more water than nutes, which might explain your issue.
Thx.
I am wondering if the plants are drinking more water than nutes, which might explain your issue.
projectinfo
Well-Known Member
What would be the isse if the planta are drinkin more water than nutes?
Ec too high?