the German Posted December 21, 2011 Report Share Posted December 21, 2011 Ok I like so meany use rain water to do my water changes .I however have no town water to my property and rely on rain 100% yes I can buy it in but it's not cheap .all my fish are breeding and growing and healthy so no problem there .as I run coral in a lot of my tanks and add salt .so hear is my ? How do you guys buffer you water up ? Salt ? How much ? Which one ?( sea salt,marine salt ,Epsom salt .) or cichlid buffer which will cost a fortune doing 8-10 thousand L system . My tank water is 5.6 ph and carben hardness is 0 ppm And tank is ph7.8 and carben hardness 20 ppm Any thorts? Or tips Thanks Steve Link to comment Share on other sites More sharing options...