I have seen all sorts of recomendations for the carbonate hardness of reef tanks. Kent recomends dKH of 8-11 for reef tanks, Thiel recomends 14-18 and others recomend even higher. Does anyone know the dKH of natural sea water and the recomendations they have heard???
I checked my books and they all (Delbeek&Sprung, Tullock and Fenner) recommend 7-10 dKH, which is the equivalent of 2.5 to 3.5 meq/L.
[This message has been edited by KMatysek (edited 06-03-2000).]
