View Full Version : Low PH

10/29/2009, 03:17 AM
I'm having problem with low PH in my tank it is at 7.98 during day but at night it drops down to 7.58 which I think its too low ... currently my calcium level is at 400 and Alk 8 Mag. 1280, Salinity 1.025, water temp 78.8 to 81, any suggestion how to get my PH up ?

.... have doors windows opened every morning for couple hours ....

Randy Holmes-Farley
10/29/2009, 06:19 AM
If that is accurate, I agree it is too low. But it also may not be accurate. Have you recently calibrated the meter? How?

This has more:

Low pH: Causes and Cures

and these may help:

Measuring pH with a Meter

A Comparison of pH Calibration Buffers

10/29/2009, 06:22 AM
Are you also running a calcium reactor? If so, that may be part of the reason for the low ph. To help keep my ph to where it should be I add kalkwater to my top off water.

10/29/2009, 07:50 AM
run your skimmer air intake line outside if you can. That will draw in air from outside and inject less CO2 into your water.