co2 ??? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 03-24-2007, 12:37 AM Thread Starter
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co2 ???

i was just wondering do they use co2 in salt water tanks.???
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post #2 of 8 (permalink) Old 03-24-2007, 01:51 AM
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As I understand it CO2 is used for calcium reactors.

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post #3 of 8 (permalink) Old 03-25-2007, 07:46 AM
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i was just wondering do they use co2 in salt water tanks.???
Yes, I have a 20lb CO2 bottle to run the calcium reactor (calcium based sand in low pH water = dissolved calcium and alk which corals eat up). Into the tank? No way, you're trying to maintain a pH of 8.0-8.2
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post #4 of 8 (permalink) Old 03-25-2007, 08:20 AM
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nobody in the saltwater tank needs CO2 anyways unless you're growing algae, kelp, seaweed.


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post #5 of 8 (permalink) Old 03-25-2007, 08:31 AM
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...or running a Ca reactor like the previous poster said. I unloaded a bunch of CO2 cylinders to reefers looking to buy a Ca reactor. =P
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post #6 of 8 (permalink) Old 03-25-2007, 12:42 PM
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If memory serves me correct, they also use it to regulate PH in saltwater.
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post #7 of 8 (permalink) Old 03-25-2007, 06:47 PM
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If memory serves me correct, they also use it to regulate PH in saltwater.
Generally, no. You hardly ever have a high-pH problem unless your kalk drip has gone crazy (and then calcium carbonate simply falls out of solution and makes really expensive sand).
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post #8 of 8 (permalink) Old 03-25-2007, 07:59 PM
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And I know of no one that wants to lower the pH in a saltwater tank. Most of the SW people are trying to keep it up.
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