PH and Alk off

[sra_chipmunk]

Well when I first started off, I had the alk and PH good. Then my PH started to drop. It was at 8.2 then 8.0. I opened up all the windows in the house, did a 5 gallon water change (I have a 75 gallon tank with a 30 gallon sump/fuge) and I just checked my PH and its at about 8.1 - 8.2.

My alkalinity has been high though. it was hanging around 11.5 did the water change as mentioned above and I just tested my alk and its at about 11.8 now.

Oh, it was about a week ago when I did the water change as well so its not like I did the water change, then did the tests. I am getting frushtrated on this.

 

[sra_chipmunk]

Oh, Cal is 390 and Mag is 1390

 

[ralph atl]

here's some info for you:

http://www.advancedaquarist.com/issues/june2002/chem.htm">http://www.advancedaquarist.com/issues/june2002/chem.htm</a>


[IMG]http://www.advancedaquarist.com/issues/feb2003/chem.htm">http://www.advancedaquarist.com/issues/feb2003/chem.htm</a>

 

[sra_chipmunk]

Thanks