How fast does a tank cylce when you put established bio media in it? - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 03-14-2014, 08:28 PM Thread Starter
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How fast does a tank cylce when you put established bio media in it?

Say you take some of the biological media from an established tanks filter and added to a newly setup tanks filter. Does it work instantly to cycle the tank, say with a light initial fish load?
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post #2 of 14 (permalink) Old 03-14-2014, 08:38 PM
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It usually does, assuming you have added sufficient seeded media material to have established a suitably sized quantity of beneficial bacteria to begin with, and you do in fact start out with a very light initial fish load, say just 2 or 3 fish, and add a few more, slowly, every several days apart or so.
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post #3 of 14 (permalink) Old 03-14-2014, 08:41 PM
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It depends on the bioload. If the amount you put in isn't sufficient to process all the waste, then it may take longer. But if sufficient, you can add fish right away.

Last edited by Solcielo lawrencia; 03-14-2014 at 09:28 PM. Reason: typo
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post #4 of 14 (permalink) Old 03-14-2014, 09:10 PM Thread Starter
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That's what I assumed. I've done it quite a few times and never had any issues. I guess it's a benefit of having MTS. You've always got some bio media to spare!
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post #5 of 14 (permalink) Old 03-14-2014, 09:31 PM
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I'm not sure of an exact answer but about a year ago I moved twice and had to move the fish. I upgraded the tank size each time as well and added "new" stuff to it, plants, driftwood and gravel as well as taking all of the stuff from the old tank. I also added the filter from the old tank as well as a new filter. I did not loose any fish either time and the tank was stable in about 2 weeks both times. Like I said, I don't know all the forces at work, but it worked well so I am a believe in using established media.
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post #6 of 14 (permalink) Old 03-14-2014, 10:32 PM
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it takes 2 hours, 13 minutes and 51 seconds normally

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post #7 of 14 (permalink) Old 03-14-2014, 10:38 PM
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Quote:
Originally Posted by jmf3460 View Post
it takes 2 hours, 13 minutes and 51 seconds normally
ROTFLMAO - Good answer !
You got up on the right side of the bed today, didn't you ?
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post #8 of 14 (permalink) Old 03-14-2014, 10:55 PM
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Originally Posted by jmf3460 View Post
it takes 2 hours, 13 minutes and 51 seconds normally
Warren Buffet and I were conversing the other day. I noted that our average wealth was about a billion dollars each.

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post #9 of 14 (permalink) Old 03-15-2014, 01:03 AM
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It you seed it with enough material, you can add fish safely within an hour usually.
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post #10 of 14 (permalink) Old 03-15-2014, 03:29 AM
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Pretty sure you can add fish safely within a hour with or without seeded material.

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post #11 of 14 (permalink) Old 03-16-2014, 06:59 AM
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I have taken bits of media from several tanks, combined these bits into a new set up and stocked immediately.

The donor tank can usually spare up to 25% of its filter media, as long as it is well established so there are more bacteria on all the surfaces of the tank as well as in the filter.

If you do not share any media, nor any other source of bacteria, but do the fishless cycle right it takes 3 weeks.
Depending on how much bacteria you add, and what your final stocking level will be the cycle will go a lot faster, up to and including OK to stock right away.

A planted tank will have a fair amount of beneficial bacteria on the leaves and other plant parts, and the plants themselves are part of the bio filter, so a densely planted tank in the hands of an experienced aquarium keeper can be stocked right away, too.
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post #12 of 14 (permalink) Old 03-16-2014, 10:04 AM
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Its always good to have a few sponge filters cycling in well established tanks, then you have an instant filter. Still have to watch your levels for a few days beacuse it is in no mean instant just quicker. You most likely will see a mini cycle as the tank gets going
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post #13 of 14 (permalink) Old 03-16-2014, 10:48 AM Thread Starter
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Yeah, I just ordered a couple more sponge filters to do just that. Thanks everyone!
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post #14 of 14 (permalink) Old 03-17-2014, 12:57 AM
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When I moved all my plants and livestock from my 125g to the new 240g about 10 days ago, I took ALL the media from my 2 Fluval FX5's and put them in the new sump.

Ammonia levels as of today were still undetectable.

I'm still keeping a close eye on it since this this tank is full of discus.

Yeah, I'm a gambling man.

240g planted discus tank
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