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Old 07-19-2003, 01:09 PM   #1
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Water, Water, & More Water

Hello,

I'm having a devil of a time with the pH in my marine tank. The tank is two weeks old and my pH levels are hovering below 8.0 I've been adding the Kent Marine Superbuffer for almost a week now and the pH level has hardly budged. Two days ago I started adding Tech-M Magnesium supplement. It may too early to tell if this is a help or a hindrance. My amonia level is 0 and my Nitrite level is high, but that's where I would expect it to be at this stage of the cycling process. My substrate is crushed coral and of course that should be helping matters. My SG is 1.22 Any help and advice would be appreciated!
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Old 07-19-2003, 01:28 PM   #2
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If your tank is only 2 weeks old, I wouldn't worry about the pH yet. some acids produced in the cycling process can naturally drive down the pH in a SW tank. Wait until the tank has fully cycled, then tackle one issue at a time. Also - I wouldn't be adding magnesium, unless you have a test kit which verifies low levels. Again, not something to worry about until the tank has fully cycled, and other parameters have stabilized.

Quote:
My substrate is crushed coral and of course that should be helping matters.
Not really. CC and Aragonite sand do not have the buffering capabilites once suspected. What CC really does is maintain elevated nitrate levels. At this point, where the tank is fairly new, I would strongly consider removing any CC.

Quote:
My SG is 1.22
Fish-only or reef tank? For a reef, you should be at about 1.025 at 80F.

Don't stress about the numbers yet. The only thing you should be really testing for right now is A/N/N. Yes, keep an eye on the pH - so you have a baseline to work with once you've finished cycling. Tans that are kept in houses where all the windows are closed also have typically lower pH, as do covered tanks, and tanks where water flow/circulation in less than optimal.

Take a deep breath...and good luck!
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Old 07-20-2003, 08:33 AM   #3
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Thank you for your advice!!
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