Cirax Filter

[Paul70]

My current filter is a juwel compact with a 400l/hr bioflow powerhead.
The filtration is as follows

white-wool pre-filter
black- active carbon coarse sponge
green- nitrate removing sponge
blue- coarse blue sponge

I am contemplating removing the carbon filter, moving the nitrate sponge up a level and placing a juwel cirax media filter basket between the green and coarse blue sponges. I read on the new fishless cycling post about not needing a carbon filter unless medicines are being used.

any advice would be appreciated.

ps-I cannot afford to upgrade to a better filter at the moment



sorry for the 3 images. had a nightmare with the editor lmao

 

[fluttermoth]

Personally, I'd get rid of both the carbon and the nitrate removing sponges and replace them with either normal sponge or cirax or some other bio media.

 

[Gvilleguy]

Another user asked about this on a different thread, and I remember Waterdrop (I think) saying that the carbon part of the carbon sponge would only last a few days, but the sponge part of it would be helpful in the long run. So as long as it is a sponge material, it should be a valid bacteria-growing space for you if you don't want to replace it. I agree with Fluttermoth that you don't need the 'special' type sponges. Regular sponges and bio-media pellets are all you need.