ROX carbon and SPS

[ReefCowboy]

Used 3 tablespoons for an 80 gal and noticed the colors were always pale on the colonies. Switched to Seachem's Matrix and gained color back. I would also pay attention to the ramping of quantity since an abrupt full quantity for a certain tank can shock. That was my experience

 

[chercm]

that carbon is very harsh and it is not advisable to be used with Zeovit system

 

[mike810]

If your system is uln, suggest you use half the recommended amount ran passively. I followed brs instructions for my 250g tank and had Stn. Now I use .75 cup in a mesh bag.