Floating Filter

[Psyhampster]

I'm doing a filter change and am floating the new cartridge. Is it ok if i just put it in the tank? Right now It's under the filter intake, but will bacteria grow on it there?

 

[BASSNMAN]

Are you changing to a different filter unit? If so, I would install it on the tank along with your old one and run both for several weeks. If you are just changing the filter insert, rinse the old one lightly in declored water and float it, install the new filter.

 

[Psyhampster]

shouldn't I let the new one be in the tank to gather good bacteria?

 

[Aquafriend]

Whether the filter media is in the tank or in the filter, it will gather bacteria. Just make sure not to remove the old one for a couple weeks until the new one is established.

 

[Psyhampster]

The main reason I'm changing it is to cycle my 30 gal quickly. If I let it float for say, 2 days, will there be enough bacteria on it to either use it in the 20 gal, or to lower the cycle time in the 30?

 

[oscarbreeder]

Not in only two days.

 

[Psyhampster]

Ok then, about how long would you say to float it for before use in the 30 if the 30 will have live plants?

 

[spence0416]

Just take the old filter insert and put it in your filter on the new tank...instant cycle. The old filter will have enough bacteria on the sides to keep your tank running. It will be just like doing a regular filter change

 

[Psyhampster]

but shouldnt I let the bacteria grow on the new cartridge first?

 

[spence0416]

I never do when I change my filter media. I've never had any spikes in my levels either.

 

[Psyhampster]

ok. Its been floating for a day anyways, so that should help

 

[TankGirl]

In an established tank you have bacteria present on the glass, decorations, filter box, everywhere, so a new filter cartridge is not a problem - no need to seed it. I have even replaced entire filters with a brand new piece of hardware and media on an established tank with no trouble whatsoever.

If you are trying to set up a new tank and seed the filter media prior to starting it up, I like to put the new filter in an established tank for about 2 weeks beforehand. I do this with biowheels and sponge filters also. That's how long I "think" it takes for the bacteria to colonize.

 

[Psyhampster]

OK, thanks. I've gotta get the salt off anyways, so it will have time for the bacteria to grow.