ph readings night and day

connecticut cichlids · 04/14/2009, 06:05 PM

whats a normal ph swing between day and night? during the day, my reading hovers around 8.2...and then hqlway through the night, i see its reading 7.98 to 8.0.... is this normal, or something to be concerned about?

Logzor · 04/14/2009, 06:10 PM

Sounds like a healthy swing. check out the PH article in the reef chemistry archives for more information.

Untamed12 · 04/14/2009, 06:11 PM

It is common, and not something to worry about. I think we all wish we could keep the pH more stable, but most of the time it behaves like that.

reefnetworth · 04/14/2009, 06:16 PM

7.5-8.6 pH Diurnal.
as Logzar said: "Sounds like a healthy swing."
if you run your skimmer air intake from outside it will be more stable. i drilled a hole in my wall to have a better o2 intake for stability.
FWIW, mine stays at 8.4 Diurnal (day to night)

Neptangelo · 04/14/2009, 06:42 PM

Diurnal means active in the daytime. Not trying to be a smart ***, just thought you might want to know. The fresh air intake is a cool idea though.

connecticut cichlids · 04/14/2009, 06:52 PM

Thanx guys!

04/14/2009, 06:05 PM	#1
connecticut cichlids Craft Beer Geek Join Date: Aug 2003 Location: CT/NYC Posts: 1,469	ph readings night and day whats a normal ph swing between day and night? during the day, my reading hovers around 8.2...and then hqlway through the night, i see its reading 7.98 to 8.0.... is this normal, or something to be concerned about?

04/14/2009, 06:11 PM	#3
Untamed12 Registered Member Join Date: Dec 2005 Location: Canada Posts: 1,578	It is common, and not something to worry about. I think we all wish we could keep the pH more stable, but most of the time it behaves like that. __________________ Fishlist: Tangs: Yellow, Vlamingi, Blonde Naso, Unicorn, Atlantic Blue Others: Maroon Clown(s), Foxface, Majestic Angel, Hawkfish and more.. Current Tank Info: 400gal Envision Acrylic reef started 04/07

04/14/2009, 06:16 PM	#4
reefnetworth Premium Member Join Date: Mar 2006 Location: U.S.A. Posts: 3,810	7.5-8.6 pH Diurnal. as Logzar said: "Sounds like a healthy swing." if you run your skimmer air intake from outside it will be more stable. i drilled a hole in my wall to have a better o2 intake for stability. FWIW, mine stays at 8.4 Diurnal (day to night) __________________ GIVE A MAN A FISH, YOU FEED HIM FOR A DAY. TEACH A MAN TO FISH, HE FEEDS HIMSELF FOR LIFE. (NEVER, underestimate another man's greed) Current Tank Info: SPS dominated barebottom display with BB sump since 2005, most consistant parameters in 19+ years of reefkeeping.

04/14/2009, 06:10 PM	#2
Logzor Registered Member Join Date: Sep 2007 Location: Kenwood, Ohio Posts: 4,073	Sounds like a healthy swing. check out the PH article in the reef chemistry archives for more information.

04/14/2009, 06:42 PM	#5
Neptangelo Moved On Join Date: Mar 2009 Location: Texas Posts: 55	Diurnal means active in the daytime. Not trying to be a smart ***, just thought you might want to know. The fresh air intake is a cool idea though.

04/14/2009, 06:52 PM	#6
connecticut cichlids Craft Beer Geek Join Date: Aug 2003 Location: CT/NYC Posts: 1,469	Thanx guys!