Ph Up/ Down

[Renegade]

Hey I guess got a Pinpoint PH Controller today and i was just looking for some info with regards to ph, i know ph goes up and down with the cycle of the sun but how big is the swing ? and at what point does it peek/ also lowest ?

My lights are on from 1pm to 1am (halides 2-midnight)

Thanks Kyle

***** Nevermind I finally found what i was looking for ************

its late and google wasn't cooperating

Kyle