Kalkwasser?

[PVitty77]

What is it? what does it do? how is it used?

[fishbowlz]

Go to the reefkeeping magazine and do a search for kalk. They have a number of articles that will teach you more then youll ever want or need to know about limewater.

Basically it is used to maintain calcium and alkalinity levels.

[PVitty77]

thanks

[NanoTX]

Holmes-Farley Lime article (http://www.reefkeeping.com/issues/2005-01/rhf/index.php)