Planning on what to put in the FX5s I just ordered. I want to fill them both up with bio (for a 260 gallon). I searched through some threads on here, and the consensus seems to be that the factory outer sponges are enough for mechanical, and that it is good to just fill all the inner compartments up with bio.
What will work better, ceramic rings or pot scrubbies? I know pot scrubbies will be way cheaper.
What will work better, ceramic rings or pot scrubbies? I know pot scrubbies will be way cheaper.