How To Use Carbon In An Internal Filter

  1. jl_1005

    jl_1005 Valued Member Member

    I bought a new internal filter. It has a tiny bit of carbon in a hole in the middle of the sponge.

    I think I'll leave it in there, but do I need to replace it? Clean it? Thanks!
  2. grantm91

    grantm91 Fishlore VIP Member

    I think i have that filter lol, is the sponge green? The carbon should be good for up to 5-6 weeks but to be honest its pointless, i stuffed about 5 bio rings in that hole just to fill it, you could put floss or any other type of media in there, get creative.
  3. OP

    jl_1005 Valued Member Member

    Haha that's the one :) thanks for the tip!