Wow this is frustrating - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 04-13-2006, 12:06 AM Thread Starter
Planted Tank Obsessed
 
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Wow this is frustrating

Just when I thought I killed off all BBA...I see it again.
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post #2 of 3 (permalink) Old 04-13-2006, 12:40 AM
Planted Tank Guru
 
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BBA means not enough CO2. Check what you have in the water by taking a tank sample, letting it sit in a shallow glass overnight, check the PH and compare it to the PH of the water in the tank after CO2 is on for a couple of hours. The tank water should be about 1.0 PH units lower, but no more than 1.1 lower (1.3 lower means double the CO2 that 1.0 means). I aim at .8 to 1.1. The accuracy of measuring the PH isn't good enough to make this a perfect measurement, but it beats the PH/KH method, which overestimates the ppm of CO2 if your water is off someway.

Hoppy
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post #3 of 3 (permalink) Old 04-13-2006, 12:56 AM Thread Starter
Planted Tank Obsessed
 
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I have never heard about this method before interesting. A small problem is that my Azoo regulator lowers the ammount of CO2 over a period of time. I need to get it to stick to a specific output.
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