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View Full Version : how to keep my kh low at 7.5?


chercm
07/23/2011, 05:47 PM
i only have zoos and one frag of stylo. i am using zeovit and it needs DKH 7.5.

Salt : D&D h20 salt

but no matter how i change the water the kh is still at 9 and i have increase the ph of the CR - media Rowalith to ph 7.2

any idea ?

HighlandReefer
07/23/2011, 05:53 PM
Your salt mix at a salinity of 1.0264 per Billy's tests comes in at around 10 dKH. The amount of coral that use alk in your tank is not enough to use much alk. You can switch to a lower alk salt mix or use HCL (muriatic acid) to reduce the alk of your salt mix. If your coral are doing fine, I would not worry about it.

FWIW, Zeovit is more designed for SPS coral. ;)

chercm
07/24/2011, 06:51 AM
do i need to get Reeferīs Best Coral Reef Salt to get that result ?

any review on this salt ?

HighlandReefer
07/24/2011, 06:55 AM
Nope, per Billy's tests at a salinity of 1.0264:

Reefer's Best

Calcium: 420
alk: 11 DKH
Mag: 1200

See this thread for salt mixes that meet your needs:

http://www.reefcentral.com/forums/showthread.php?t=1714505

kgross
07/24/2011, 08:31 AM
One other thing, it seems like you are running a calcium reactor, on your low demand tank, that could also make it very hard to keep your alk low.

disc1
07/24/2011, 11:44 AM
One other thing, it seems like you are running a calcium reactor, on your low demand tank, that could also make it very hard to keep your alk low.

Absolutely. I would nix the reactor and dose cal and alk by hand or water change until you have more coral in there.

chercm
07/24/2011, 04:39 PM
Absolutely. I would nix the reactor and dose cal and alk by hand or water change until you have more coral in there.

do you mean to switch off the CR ?