Not sure if this just happened to me using the newer HC,by Warner Marine.I've used the other version,before this one came out.Not so sure if it's a concern or not.Because this never seem to happen with their other media.The older brand keep that dark brown color,as the day I put it in.
The new HC has been in the reactor a week now.But what was strange the media after one week has turn "black" in color.Does anyone know if they have scene the same thing occur
I just thought it was the same stuff,,but a larger grain size.Or is it possible it's exhausted already?Because I understand usage anywhere to 6/8 weeks.
Just wondering what I'm seeing is a normal thing?
