How long does it take for BB to invade new filter floss?

Hi guys, sorry I'm posting A BUNCH of threads.
I tried the fishlore search but couldn't find the answer to my question. Also, I didn't know which section of the forum I should put this on so I just put it on Freshwater aquarium discussion. (lol, I'm not a newbie)

Scenario: Doing my weekly water change and I realize I have to change out my filter floss because it's pretty gunky. The old filter floss has tons of beneficial bacteria and I don't want to lose it. I put new filter floss in and keep the old one in as well. How long until the new filter floss has beneficial bacteria built up and I can remove the old one? I want to have the new one with a good amount of bacteria but not waiting long because I want to take out the old one.

 

Don’t replace it unless it’s literally torn other wise just rinse it off

 

Don’t replace it unless it’s literally torn other wise just rinse it off

Agreed. However, I like to keep my old and new media together for 3 weeks if I am going to replace it. That way I’m making sure I won’t crash the cycle

 

Don’t replace it unless it’s literally torn other wise just rinse it off

Yes. Agree. Don't need to replace until it's very dirty and torn up. I will probably rinse it out not replace it. I will rarely replace it but when i do how long until can take the old one out so my cycle doesn't crash?

Agreed. However, I like to keep my old and new media together for 3 weeks if I am going to replace it. That way I’m making sure I won’t crash the cycle

So I will wait 3 weeks for the new filter floss to get gunky, right?

 

Yes. Agree. Don't need to replace until it's very dirty and torn up. I will probably rinse it out not replace it. I will rarely replace it but when i do how long until can take the old one out so my cycle doesn't crash?

So I will wait 3 weeks for the new filter floss to get gunky, right?

Yup! After that you can remove the old floss if you want

 

Yup! After that you can remove the old floss if you want

okay! thank you jkkgron2 and darwinthebloodparrot!

 

Although some beneficial bacteria do grow in filter floss, the primary job of the floss is to provide mechanical filtration to remove particles from the water column. It is best not to rely on filter floss alone as the biological media in the tank. Filter sponges and ceramic biomedia are far better suited for that purpose.

 

Although some beneficial bacteria do grow in filter floss, the primary job of the floss is to provide mechanical filtration to remove particles from the water column. It is best not to rely on filter floss alone as the biological media in the tank. Filter sponges and ceramic bio media are far better suited for that purpose.

Yes, I agree but BB (beneficial bacteria) grows in every nook and cranny of a fish tank.