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Old 04-08-2014, 02:06 PM   #1
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Alkalinity

Hi all, I started using Red Sea pro alkalinity test kit, I presume when using it you take total volume of test liquid used to give you the alkalinity reading from the chart provided ? Bit confusing! It is showing a reading of 7.0 dkh which I hope is ok for my reef tank!
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Old 04-08-2014, 02:25 PM   #2
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Yes, that's right. You look at how much of the liquid in the syringe you used right when the solution turns color, then compare that volume to the chart to see what the corresponding dKH is. Definitely not the easiest test to use, but supposedly one of the more accurate ones out there for the price range.
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Old 04-08-2014, 02:27 PM   #3
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The generally accepted range for reefs is 8-12 dkh, so 7 is a bit low.
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Old 04-08-2014, 02:40 PM   #4
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Thank you ants86, I am adding a buffer fluval sea alkalinity once weekly
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Old 04-08-2014, 03:01 PM   #5
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Quote:
Originally Posted by Doddy View Post
Thank you ants86, I am adding a buffer fluval sea alkalinity once weekly
How's that working for you? I'm having some issues with low alkalinity too.
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Old 04-08-2014, 03:12 PM   #6
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Alkalinity was low so was advised to use it by the shop I use,I'm not good at chemistry
I have an aqua one 300 tank, started set up July' 13
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Old 04-08-2014, 03:14 PM   #7
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Rule #1 about things like this, don't chase numbers if it isn't causing problems. Dosing usually adds to issues or masks what is truly going on. Water changes should keep things equalized in normal situations...it takes an extremely SPS heavy tank to cause drops to require dosing.
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Old 04-08-2014, 03:15 PM   #8
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7 is what the ocean is. That's where I keep mine. If it works for the natural reefs it works for me
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Old 04-08-2014, 03:41 PM   #9
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Alkalinity and Calcium are in a circus and they have a good team work. They entertain us with something what we call a "balancing act". If one of them goes down the other goes up. In other words if you raise your alk you will expect your calc to go down and vise versa. That's why they advise you not to chase it but rather just compromise which level you prefer them to be balanced.
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Old 04-08-2014, 05:15 PM   #10
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Take my tank for example. It was 430ish a few weeks ago with an ALK of 11. Over the weekend the calcium was 290 and ALk was 7 or slightly less. I did an 18 gallon water change (120 total water volume) and started dosing with a 2 part calcium and alk buffer. Today alk is back up to 10 and calcium is 300. I have a lot of coral growth along with a ton of coraline algae.
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