High Alk

[cushingme]

I am having a problem that seems to be unusual... My alk is high. I know what to do if it is low but what do I do when it is high? I have a 55 reef tank that has been set up for 5 mos.
thanks

 

[reefrunner69]

What are the actual numbers in DKH or Meq/L? What is the CA and what is the mg? You can almost never go wrong with a waterchange, but before we get rid of the symptoms, let's find out what the problem is...

 

[MadManMac]

Also, what are you doing for maintenance? Are you adding any supplements or additives?

I too have a very high Alk at 14.7 dKh (was 16!), and am currently bringing down slowly by adding only Ca rather than my normal 2 part solution.

BTW- The cause was a bad round of top off from the LFS with too much buffer.

 

[jackdp]

Post your Ca, Alk and pH levels and take a look at this article, its great for fixing Ca/Alk problems.

http://www.advancedaquarist.com/issues/nov2002/chem.htm

 

[MadManMac]

That is the article that is helping me get back on track very effectively.