How do you make buffer?

[Houtz]

I've run out of pH buffer and my pH is 8.0,
I live a long way from the salt water fish store and it will take a few days to order some. Can you put any common household chemicals or food products in the tank to safely manipulate the pH?
Thanks a lot!

 

[DrBDC]

You can use baking soda as many do. Here is an article which explains how to make a calcium, alkalinity(buffer), and a magnesium supplement. I'll also attach a link to a chemistry calculator in which you can decide how much to use according to your test results.

http://reefkeeping.com/issues/2006-02/rhf/index.php


http://home.comcast.net/~jdieck1/chem_calc3.html