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Old 01-19-2014, 10:24 AM   #31
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Originally Posted by mr_X View Post
The PH will change with aeration and environment. I wouldn't worry about it.
API test kits are notoriously inaccurate. Salifert and Elos are better, but cost accordingly.
the only thing I would be concerned with is the nitrate.

Bought a salifert BTW
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Old 01-19-2014, 10:47 AM   #32
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If you put the 2 airlines from the skimmer into one that's the same size, yes, you are impeding the performance of the skimmer. Don't do anything to reduce air intake.
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Old 01-19-2014, 10:52 AM   #33
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Ok. Good thing I asked. I have enough tubing leftover to run a second line or do you think one is enough and leaving the other intake along will help my PH issues?
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Old 01-19-2014, 11:12 AM   #34
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I have no idea. What are you seeing now? What is Salifert telling you?
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Old 01-19-2014, 11:17 AM   #35
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The salifert is for nitrate. It's on it's way.

The PH meter showed a .02 increase after I added the tubing but I don't know if that just coincided with the lights coming on. It's at 8.10 now after going down to 8.05 overnight but it was up to 8.3 yesterday because I was adding 8.4 and Balance
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Old 01-19-2014, 04:08 PM   #36
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I was told to stay away from them buffers.
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Old 01-20-2014, 03:03 PM   #37
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It seems the airline worked. My tank went up to 8.21 yesterday and is hovering around 8.19/8.20. Last night it dipped to 8.05.

I also bought dosing pumps from BRS for my EVS 2 part dosing. I'm anticipating that by dosing the alkalinity at night I can suppress the decline in PH.
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Old 01-20-2014, 03:39 PM   #38
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Try not to chase the PH. Add some alkalinity and that will help buffer the PH swings, but don't go overboard. Make adjustments very slowly. Improving gas exchange, which you have done, is the first step. Many of us add a bit of baking soda daily to increase alkalinity and to improve buffering, but you need to know your magnesium and calcium levels as well to get the proper balance needed. Unless your tank is old, like mine, or is heavily saturated with hard corals, water exchanges will probably be sufficient to maintain a good ph balance.
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Old 02-07-2014, 05:41 PM   #39
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Still having PH issues and it's going down. Now it's 7.85 during the day. All is 10.1, Ca is around 500, MG 1300, temp 77, Sg 1.0245

I don't know what's going on but everything looks good in the tank. I did notice my IO Reef crystals comes in at about 7.95 PH despite aerating the mix water. I have the DI unit on my RO water as well.

I'm at a loss.
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Old 02-07-2014, 07:04 PM   #40
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Calcium is not 500 if Alk is 10. I think those numbers are incorrect. Reef crystals will never give you a calcium level of 500, and adding such will drop your alk considerably.
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