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Unread 10/07/2015, 06:22 AM   #1
Johnb123
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kh vs gh

what's the difference from kh and gh? i understand alkalinity and it's requirements but what's general hardness and its relation to a reef aquarium? are they directly correlated for example if dkh is 7 would gh then be 7 as well or if one of them goes up or down will the other do the same? gh isn't just some form of magnesium measurement is it? thanks.



Last edited by Johnb123; 10/07/2015 at 07:04 AM.
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Unread 10/08/2015, 12:23 PM   #2
Johnb123
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bump!? do i need to measure gh?


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Unread 10/08/2015, 01:16 PM   #3
cloak
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Check this out.

http://www.peteducation.com/article....+1276&aid=2765

HTH


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Unread 10/08/2015, 03:51 PM   #4
billsreef
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gh is pointless in a SW aquarium, so you can forget it


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Unread 10/09/2015, 07:50 PM   #5
Johnb123
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thanks a lot cloak and bill these were really helpful!


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