What is your ph

AussieExoticCorals · Jan 19, 2009

what do you guys set your ph & alk at?

And secondly, how do I lower the ph if is too high?
Thanks
G

Russellaqua · Jan 19, 2009

I keep a pH of 8.2 (ocean standard) and a dkH of 9.

bkv1997 · Jan 19, 2009

ph 8.2 and a dkh of 8.

I'd do a large water change if it is abnormally high.

Brandon

jimmybling31 · Jan 19, 2009

mine is 8.2 with dkh 10

oceaninabox · Jan 19, 2009

8.2 with a dkh 10

TROYREEFER · Jan 20, 2009

8.0 for the PH and 9 dkh. If you want to lower your ph a simple water change will do.

CHUBAKAH · Jan 20, 2009

PH 8.3 Alk at 7dkh. I am however running a zeo system which requires a lower dkh.

kgehrke · Jan 20, 2009

Vinegar can also drop your PH, but it can cause an algae bloom. Water changes are the best method.

ss7 · Jan 26, 2009

8.15 ph @ 7.5 dkh

I pay more attention to dkh and stability of that element rather than chasing ph.

SS

Reef Pets · Jan 26, 2009

8.4 ph and 10 dkh

Viva'sReef · Jan 27, 2009

I havent dont a probe calibration in a while so I will tonight just to be sure, but my PH has been around 8.4 and reaches to 8.55 during its peak, then drops down to about 8.25 after a couple hours of lights out.....

Do you think 8.55 is too high? I have seen it jump to 8.59 once before

Chris22582 · Jan 27, 2009

I swing from 8.05 before the lights come on and about 8.2 when the lights are on. My ACjr keeps me honest. lol 10 dkh

blkicebullys · Jan 27, 2009

Ph 8.3 dkh 9

freshfish · Jan 31, 2009

8.3 ph / 10 dkh

jtl2 · Jan 31, 2009

8.1 ph and 315meq/l (~8.8 dkH)

jtl2 · Jan 31, 2009

should be 3.15meg/l

bellareef · Feb 16, 2009

If your pH is too high, it might be good to look at what might be the cause. pH is a relative measurement of proton concentration in the water, which is affected by different things in a reef.

pH = -log [H+]

Although a pH of somewhere between 7.8 - 8.5 is recommended, where 8.1-8.3 is better, a stable pH is more important than achieving a specific pH, such as 8.2. Better to maintain alkalinity (which changes faster than Ca in a reef), than to target a certain pH.

Does that make sense?