PH Spike... WHAT!
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Old 10-15-2003, 04:51 AM   #1
mattrmiller
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In my small tank I had a PH spike the other day, I am still really confused about this one though. At first it was up around 8.4-8.5, after some emergency water changes with R.O water I got it down around 7.0... over several days to reduce stress on fish.

The tank is not new, it has been established for a long time... which is why this is so hard for me to figure out. It has sand/gravel substrate, and I do weekly water changes with a mix of RO water and Tap water... because my tap water hardness is off the charts. As of now the water parameters in the tank are PH: 7.8 KH: 71.6 GH: 107.4

1) Why does the PH keep raising... I can not keep doing water changes every other day to keep it down.

2) What may have cause this?

Any help would be great.. my tanks have been frustrating me because they both went though unexplained changes... like sabotage or something :shock:
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Old 10-15-2003, 12:53 PM   #2
Rex Grigg
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Have you added any rocks or other decorations to the tank? Is it possible your pH test kit is old? Or is it possible your pH probe needs to be replaced or calibrated? What is the kH in the tank? What is the substrate?
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Old 10-15-2003, 01:34 PM   #3
mattrmiller
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Like I said, nothing has changed... it has been stable for several months.

It has sand/gravel substrate, and I do weekly water changes with a mix of RO water and Tap water... because my tap water hardness is off the charts. As of now the water parameters in the tank are PH: 7.8 KH: 71.6 GH: 107.4
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Old 10-15-2003, 03:13 PM   #4
mattrmiller
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If anyone can help, it would be greatly appreciated.
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Old 10-23-2003, 09:21 PM   #5
Guttboy
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Matt,

Did you ever find what caused your Spike?

Mike
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100 Gal Planted, two Filstar XP3, Milwaukee SMS 122 pH controller, Milwaukee reg/bubble, compressed CO2, reactor 1000, 7 WCMM, 12 Ottos, 14 neons, 1 SAE, 3 German blue rams, 2 Florida Flag Fish

10 Gallon...20 Endler's live bearers planted, peat/kitty litter/sand substrate

15 Gallon...Just Schultz Aquatic Plant soil
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Old 10-23-2003, 09:30 PM   #6
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No, I never did. It seems to be fairly stable now. But it fluctuates some.
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