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Old 06-27-2005, 10:28 PM   #1
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Tufa Rock

I've tried testing my pH at different times of the day and it is 7.8. I just can't get over the feeling that the Jumbo Tufa Rock I added caused the pH to go from 8.2 to 7.8 (the drop happened immediately after the Tufa addition)

Is this possible or am I just unecessarily stressing out about the pH at this stage (1/2 through cycle). I thought Tufa had buffering qualities, yes/no?

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Old 06-28-2005, 06:43 AM   #2
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Your ph will drop throughout the cycle. Tufa has been used safely in SW for quite some time. Finish you cycle and then do a pwc and then check your ph. Do you have a glass top on the tank? Lack of gas exchange can drop ph too...

Mike Jones
32 gallon hex, 34 lbs lr, Prizm protein skimmer, fluval 104, 1 maxi jet 750, 1 maxi jet 1200 ph, current 40w 50/50 pc, 1 NO powerglo 19watt, 1 daylight NO 65w (equiv), two damsels, 1 green brittlestar, 1 peppermint shrimp, turbo snails, red legged hermit crabs, kenyan tree coral, leather coral, pumping xenia, mushroom coral, green star polyps, orange button polyps
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Old 06-28-2005, 09:47 AM   #3
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I wouldn't be surprised if that's what did it then. I do have a glass cover, and it was covering the better part of the tank, with only a Emperor 400 for water turnover when I added it. Now I have a hagen 70, powersweep 228, magnum 350, coralife superskimmer220, and the emperor 400 turning over the water. I will also take off the plastic runners that cover the space between the back of the tank and the glass cover.
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