Do you re ph the water in your reservoir?

[the123321]

I am looking at using autopots with water with calmag with silicon in it. I have been mixing a few days worth at a time and then when I test ph in the water the next day it is like .5 higher. How does that work with a reservoir? Do you test ph in the reservoir every day and then adjust it as needed? Is there a way to keep it from drifting up like that on there? I use gh ph down with tap water on there. If you have to test and adjust the ph every day that takes a lot of the convenience of the autopots out from it on there.

 

[Death The Cultivator]

I am looking at using autopots with water with calmag with silicon in it. I have been mixing a few days worth at a time and then when I test ph in the water the next day it is like .5 higher. How does that work with a reservoir? Do you test ph in the reservoir every day and then adjust it as needed? Is there a way to keep it from drifting up like that on there? I use gh ph down with tap water on there. If you have to test and adjust the ph every day that takes a lot of the convenience of the autopots out from it on there.

A rise in pH between feedings is normal. When I flood, for example, I may start at a 5.5 pH but the return water will come back a 5.7 which is okay. Letting the pH drift between 5.5-6.4 in a hydro medium allows uptake through the whole pH range. When I got around 6.2ph I adjust it back down to 5.5.


pH adjustments is just part of maintaining a reservoir a and with a stable nutrient like Mega Crop it won't drift so much.