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Old 06-27-2004, 12:56 PM   #1
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Location: West Lafayette IN
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ph problems?

My ph reading this morning read between 7.8 -8.0 (too low I understand). All I have in my 55 gal is about 20 lbs of live rock and 13 small hermit crabs and 1 snail. I have been using kent pro ph buffer in atempts to raise the ph to 8.3. Any ideas? It was my understanding the measuring in the morning was the best time to test for ph. I have 40 lbs cc/ 20lbs argonite sand mixte for a substrate.

55 gal FOWLR
Euro-reef 5-2 skimmer, 29 gallon sump
3x penguin 1140 ph
2x65 10,000K and 2x65 03 Acintic
40lbs cc/30lbs argonite sand mixture
80lbs keys rock (www.liverocks.com awesome stuff)
25lbs fiji/tonga lr
10lbs lace base rock (now hapily live with lots of coraline growth)
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Old 06-27-2004, 01:17 PM   #2
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whats the alk readings??

good luck keith
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Old 06-27-2004, 01:30 PM   #3
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7.8-8.0 first thing in the AM is actually not that low. Testing at that time is not really the best indication of pH as a rule either. That is when it is at it's lowest and is greatly affected by in tank and ambient CO2. Midday (or midway through the photoperiod) is generally a good time to test. Be sure as well to test near to the same time of day each time you test to guage fluctuations.

As the day progresses, the algaes in the tank produce O2 counteracting the affects of the CO2 created at night. O2 raises the pH while CO2 supresses it. It is quite common to have a pH as low as 7.8 before lights on in the AM and 8.5 just before the lights go off at night.

Test at mid afternoon and see what you get. I would still post the alk reading as Scuba suggested.

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