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Old 06-21-2004, 05:11 PM   #1
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HELP! High Nitrites in QT

I've just discovered my Nitrites are at 5ppm+ in my 15gal QT, and my butterfly looks a bit worse for wear. I only did a 50% waterchange yesterday, and all was ok before that, don't know what's going on.

I'm tempted to put him in the main tank now, he's been in QT for 3 weeks and 1 day.

I won't be able to do another water change for at least a day and a half.

What do you think?
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Old 06-21-2004, 05:24 PM   #2
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I need to move on this now, anyone any last minute advice?
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Old 06-21-2004, 05:35 PM   #3
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If you have high nitrites than you do not have enough beneficial bacteria for you tank's bio-load. Can you move some bio-media from you larger tank to the filter in your QT ? A bio-wheel, bio-balls, or some media from a canister.
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Old 06-21-2004, 09:25 PM   #4
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Just lost him.

So I put him into Quarantine when he's perfectly alright and kill him. Nice.

My own fault - I was just checking for ammonia and not nitrite - I figured if there was no ammonia then there'd be no nitrite.

Live and learn I guess.



The Banggai is fine, now in my main tank and eating.
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Old 06-22-2004, 01:27 AM   #5
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sorry to hear of your loss...what size main tank and kind of butterfly? just wondering, I am thinking of trying a butterfly...
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Old 06-23-2004, 10:32 AM   #6
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Sorry to hear about your butterfly, Mark Live and learn is definitely right, we've all been there.

Great news about the Banggai though!
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Old 06-23-2004, 06:49 PM   #7
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Thanks Atari.

So, my Fluval filter (in the QT, which still has water in although the filter/heater isn't on) has 2 foam pads in it - one which I colonised with bacteria in the main tank for 2 weeks before putting it in the QT.

Question is, will there be still enough bacteria on the 2 pads in the QT if I do a 100% waterchange and put main tank water in the QT (I need to take all the water out of course because of the high Nitrites). The tank is still full of water, but the filter hasn't been running for 2 days. It'll also take me another 2 days to do the new water (to replace the water taken out of the main tank). So that'll be 4 days without the filter on in the QT.

Or, would you start again and take one of the pads out and seed it in the main tank for 2 weeks, and let the 2nd pad dry out?

Cheers!

Mark
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Old 06-24-2004, 12:29 PM   #8
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Anyone?

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Old 06-24-2004, 10:32 PM   #9
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Bacteria is not contained in the water itself so it will not be affected as long as the filter pads remain wet and aerated. I would however not suggest a 100% water change with fish in the tank. The drastic change in water specs could stress them quite severely. I would instead suggest a 25-40% change every day until the nitrites get under control. Might not seem like much difference but it's easier on the fish.

Be sure as well that once you remove the SW, rinse the filter pads in it before you discard the water. This will ensure you rid the pads of any trapped foods and detritus while still preserving the needed bacteria.

Cheers
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Old 06-25-2004, 02:55 PM   #10
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Steve - there are no fish in my QT. I'm going to do a 100% waterchange (refill with main tank water) and put a new fish in.

By the time I get my fish, the QT will have been filled with water (water with very high nitrites) for just under a week (I haven't taken the water out yet), but my filter hasn't been switched on and the water hasn't been aerated or heated.

Will my 2 filter pads still be ok? There's been no ammonia source for a week either, of course.
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