Pat24601
Well-Known Member
Not a dumb question. I've always assumed order doesn't matter, but your flow is bottom to top so maybe in some sense it does a little.
Personally, I put CPE on the bottom 2, Purigen on 2nd from top, and filter floss on top. That is 100% due to the frequency they need changed. I change filter floss twice a week so it's on top, purigen 1/month so its second, etc. Just makes me pull the media rack out a bit less for my more frequent changes.
Oh, and I started using them after the cycle. But, im not sure what others did. They aren't cheap and it just seemed wasteful to use them while cycling.
Personally, I put CPE on the bottom 2, Purigen on 2nd from top, and filter floss on top. That is 100% due to the frequency they need changed. I change filter floss twice a week so it's on top, purigen 1/month so its second, etc. Just makes me pull the media rack out a bit less for my more frequent changes.
Oh, and I started using them after the cycle. But, im not sure what others did. They aren't cheap and it just seemed wasteful to use them while cycling.