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Old 08-06-2008, 04:15 AM
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ph test expired??
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Old 08-06-2008, 04:21 AM
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No, it's only 4 months old.
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45 Gallon Cube with 10 Gallon Sump, Lighting 8 bulb T5, Vertex IN 80 Skimmer
-2 Occelaris Clowns, Engineer Goby, RBTA, Peppermint Shrimp
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Old 08-06-2008, 04:23 AM
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do you use kalkwasser
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Old 08-06-2008, 04:26 AM
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No additives yet, as all Ca and KH levels have been normal so far.
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-2 Occelaris Clowns, Engineer Goby, RBTA, Peppermint Shrimp
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Old 08-06-2008, 04:41 AM
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i see you test at the end of the day, just after lights out or have your lights been out for a while?
as co2 increases at night ph lowers, also whens the last time you did a big water change? the more waste build up in the tank will lower your ph.
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Old 08-06-2008, 04:58 AM
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Do you have a sump? If not are you using some type of surface skimmer?

Tanks without sumps can sometimes have a film buildup on the surface of the water that inhibits co2/oxygen exchange which can lower ph.
Even if you do have a sump try pointing a powerhead directly at the surface see if that helps to raise the ph at all
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Old 08-06-2008, 06:48 PM
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Well it is time for a WC and I did that this morning so hopefully that will help. I will retest pH tonight. I always test right at lights out. Also I added another powerhead and pointed one at surface for more agitation.
Thanks for the tips - hopefully this will fix it! Oh and no I don't have a sump nor a surface skimmer.
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-2 Occelaris Clowns, Engineer Goby, RBTA, Peppermint Shrimp
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