One more note...In most cases, when you use RO/distilled water...using GH or AN 3-part, the buffers in the nutrients bring the ph to acceptable levels, if not perfect. again, imho
latewood Reviewed by latewood on . growing hydro with no way of checking ph i know i should have waited to get the ph pen but i couldnt. i know that ph should be aroung 5.5 -6.0 in hydro. everything is looking good but im kinda nervous cuz i dont want to lose my babies.i heard that ro water is 6.0 then when you add the gh 3 part form.the ph will drop to around 5.8.is this true. Rating: 5