Cycling tank with a filter from an existing tank

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Marauder225

Marauder225

Candiru
MFK Member
Dec 8, 2011
385
4
48
New jersey
So I'm setting up my 125 this weekend since I had some time off. It has a fluval fx6 and fluval 406 canister filters that I'm going to run as the filtration. To help with cycling I put my ac110 from my 75 gallon tank on the 125. I still have a 406 running on my 75z How long do I need to wait for the bacteria to colonize the 406 and fx6. Just trying to know when I can return the ac110 to my 75. Thanks in advance for any help


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It varies, but generally a month runtime on a cycled tank should be about all it will need, clean nothing( media) and it should be cycled or close.....
 
Because you have a filter that is already seeded to run on the tank, a few fish could be added right away, but not an entire tankful.
I believe you "need" to add some fish right away to keep the filter seeded, unless using straight ammonia.
 
I would've done a couple of gold fish for about week then if your water parameters are good you can start adding your fish every 2-3 days. Goldfish are cheap and also create a lot of waste. I've always done this method along with taking fish water from my other tank into my new one. Also taking the filter to.

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crxlsturbo said:
I would've done a couple of gold fish for about week then if your water parameters are good you can start adding your fish every 2-3 days. Goldfish are cheap and also create a lot of waste. I've always done this method along with taking fish water from my other tank into my new one. Also taking the filter to.

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The goldfish Idea would have worked as we'll I'm sure but I really don't want to end up with goldfish in the tank I've had issues with feeders in the past not being eaten and currently have a comet goldfish around 7 or 8 inches in a tank with my turtles and don't want anymore goldfish to take care of


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Marauder225 said:
The goldfish Idea would have worked as we'll I'm sure but I really don't want to end up with goldfish in the tank I've had issues with feeders in the past not being eaten and currently have a comet goldfish around 7 or 8 inches in a tank with my turtles and don't want anymore goldfish to take care of


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Not to keep. Once I was done adding a few fish here and there I would take it back to the lfs. No need to keep them.

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I have always had good luck with taking seeded sponge filters from my other tanks and ringing them out in my new filters bio media.
 
crxlsturbo said:
Not to keep. Once I was done adding a few fish here and there I would take it back to the lfs. No need to keep them.

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Oh I got ya. The idea of taking them back to the lfs after the tank cycled never even crossed my mind and that would have been the easiest option lol


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