reeder79 Posted February 12, 2006 Share Posted February 12, 2006 my corals arn't looking so good... what should my reef tank's alkalinity be at? I'v heard about 8-12dkh, but the hagen test kit I have says it should be 125 mg/L which equals only 7 dkh. Should i even listen to the hagen test kit, or raise my dkh? my tanks dkh is really low for some reason about 4.5 dkh, i just switched to a better salt, so i'm hoping the conditions of my corals will improve...i hope Link to comment
Flipper1 Posted February 13, 2006 Share Posted February 13, 2006 Your alkalinity (also known as carbonate hardness) should be kept in the range of 2.5 to 4 meq/L, which is roughly 7 to 11 dKH. Of course alkalinity alone is not going to dictate the health of your corals, and calcium levels, pH, and many other factors come into play. I suspect, though, that if your alk is very low, then your calcium may be, also, since both are 'used up' at about the same rate by organisms in you tank. Levels can be made up and/or maintained through the use of limewater (kalkwasser) or a good two-part additive such as B-Ionic. If you sup;ply more details about your system, I'm sure we can offer more extensive advice. Good luck. Link to comment
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