Can I add more/replace biological filter media?

Reefing_addiction · Jul 17, 2020

Can I add more?

Can I replace the old?
Or
Should I just add more?

Will it cause my tank to cycle?

P.s. I have a 16g biocube
One nem, two clown, one mandarin, two cleaner shrimp, 2 snails, 1 Zoa, 1 hammer, 1 pulsing (crap I forgot it’s name), 1 duster

Mikedawg · Jul 17, 2020

dyerrm said:
Can I add more?

Can I replace the old?
Or
Should I just add more?

Will it cause my tank to cycle?

P.s. I have a 16g biocube
One nem, two clown, one mandarin, two cleaner shrimp, 2 snails, 1 Zoa, 1 hammer, 1 pulsing (crap I forgot it’s name), 1 duster

Sure you can add more to an established tank if you are just "topping" off the established media - assume you are talking about something like Seachem's Matrix. If you replace it all, then you may trigger a new cycle.

Pulsing "xenia" maybe.

Dan_P · Jul 17, 2020

If the medium is your only biological filter, be very careful about replacing it. New medium will take some time to become established and start to work.

Do you have a problem that is making you think about replacing the medium?

Reefing_addiction · Jul 17, 2020

Mikedawg said:
Sure you can add more to an established tank if you are just "topping" off the established media - assume you are talking about something like Seachem's Matrix. If you replace it all, then you may trigger a new cycle.

Pulsing "xenia" maybe.

Yes pulsing Xenia

Reefing_addiction · Jul 17, 2020

Dan_P said:
If the medium is your only biological filter, be very careful about replacing it. New medium will take some time to become established and start to work.

Do you have a problem that is making you think about replacing the medium?

I’m starting to wonder if there is enough of it