just in case big kalk mess happen to one of you!
I have added about 2 full cup of kalk in a 130 gal. without any loss
http://www.reefcentral.com/vbulletin/showthread.php?s=&threadid=67217&highlight=disater
http://www.reefcentral.com/vbulletin/showthread.php?s=&threadid=73242&highlight=disater
in emegency Vinegar or gaseifed water (club soda or mineral water)would work but you need a PH meter
[ 18 May 2002, 14:32: Message edited by: stephane ]