Water Changes & Bacteria - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 10-26-2011, 05:23 PM Thread Starter
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Water Changes & Bacteria

I have redone my plumbing with a single intake and outlet for 2 Eheim 2217 canisters, during a water change I used to leave the running with on problems and didn't have to worry about how long I took. Now I can tap into the plumbing under the tank and drain/fill from the kitchen sink but my filters are turned off, it took 30 to 40 minutes to drain and it will take half that time to refill the tank with 62.5 gallons of water.

So 45 minutes to an hour my filters are not functioning and my nitrifying bacteria and other goodies are gasping for oxygen, what do you think is an allowable time for these bacteria to go with out oxygen.


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post #2 of 9 (permalink) Old 10-26-2011, 06:38 PM
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Cut off filters in my 46G for an hour last night to rescape. Every filter is cut off daily for 10 minutes for feeding. And had several 3-4 hour blackouts in the past year. None of this has bothered the biofilter in the least. No worries.
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post #3 of 9 (permalink) Old 10-26-2011, 06:43 PM
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Several hours when wet. You're fine.
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post #4 of 9 (permalink) Old 10-27-2011, 11:03 PM
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Originally Posted by 150EH View Post
I have redone my plumbing with a single intake and outlet for 2 Eheim 2217 canisters, during a water change I used to leave the running with on problems and didn't have to worry about how long I took. Now I can tap into the plumbing under the tank and drain/fill from the kitchen sink but my filters are turned off, it took 30 to 40 minutes to drain and it will take half that time to refill the tank with 62.5 gallons of water.

So 45 minutes to an hour my filters are not functioning and my nitrifying bacteria and other goodies are gasping for oxygen, what do you think is an allowable time for these bacteria to go with out oxygen.

As long as the bacteria is wet, i have had it live for a 5 days with the power being off (hurricane wilma) power came back on, and all was well.....
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post #5 of 9 (permalink) Old 10-28-2011, 12:06 AM
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I agree with the previous answers. As long as your bacteria are wet you should more then ok with an hr of off time.
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post #6 of 9 (permalink) Old 10-29-2011, 06:16 PM
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I had a 3 day outage and the bacteria in my canisters on both tanks at the time survived just fine.
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post #7 of 9 (permalink) Old 10-29-2011, 09:18 PM Thread Starter
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Ok, thanks to all for the replies, I have also gone thru huricanes with long outages but at the time the tank was neglected, now it's getting dosed daily tons of cash on plants, fish, & shrimp and I have alway left the filter running durring a water change so it is just something new I'm not used to, thanks again.


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post #8 of 9 (permalink) Old 10-29-2011, 09:35 PM
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So no concerns about anaerobic conditions?

I ask this in an emergency situation via blackberry in candlelight ; I've lost power to my house for 3 hours now in this new jersey snow/wind storm. Its 60 degrees and dropping in my house which isn't good either (especially as my Otos are on day 14 of QT and my tetras are in a new tank for the third day)

I am unsure if I should open/rinse my canister or I have a few hours yet?

Sorry to hijack...

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post #9 of 9 (permalink) Old 10-31-2011, 10:17 PM
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So no concerns about anaerobic conditions?

I ask this in an emergency situation via blackberry in candlelight ; I've lost power to my house for 3 hours now in this new jersey snow/wind storm. Its 60 degrees and dropping in my house which isn't good either (especially as my Otos are on day 14 of QT and my tetras are in a new tank for the third day)

I am unsure if I should open/rinse my canister or I have a few hours yet?

Sorry to hijack...

Sent from my BlackBerry 9650 using Tapatalk

A few hours? No need to do that quite yet....if the power is out 24+ hours, take your battery backup from your puter (if you have one) and run it 30-60 minutes a clip....
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