Well Established Filter Enough To Prevent Nts?

dfish

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Hello!

I'm thinking to set up a second aquarium and scape it from scratch.

Instead of adding an established bottom layer of sand to get the tank cycled, would it be safe enough to use my well established canister filter and add fish straight away? It's a big canister with a big amount of biological filtration used for over a year (and still in use), thus plenty of bacteria inside it.

Thank you for your help!
 

appcontrol

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Hello!

I'm thinking to set up a second aquarium and scape it from scratch.

Instead of adding an established bottom layer of sand to get the tank cycled, would it be safe enough to use my well established canister filter and add fish straight away? It's a big canister with a big amount of biological filtration used for over a year (and still in use), thus plenty of bacteria inside it.

Thank you for your help!
Always is better to use used filter media it have 98% of bacteria that you need. Sand, gravel etc. have maybe 1-2% of them.
Just dont let it dry and let it work for few hours without fish in it.
 

mattgirl

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Absolutely!!!! that is the joy of already having a cycled tank. Once you have one you never have to go through the cycling process again. As long as the bacteria is well fed it will stay healthy and able to instantly cycle another tank.

One can just move some of the seeded filter media to a new tanks filter housing along with new media and that too will almost instantly cycle a new tank. The bacteria will just think it had a really big water change and as long as the water has been conditioned with either Prime or any of the various water conditioners that remove the chlorine. Just continue to feed the bacteria with either bottled ammonia or adding enough fish to feed it.

It is possible that you will experience a quick mini cycle but it will be safe to go ahead and add fish once the new tank is set up and the well established canister is filtering it.
 
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