gmanova
Aquarium Advice Activist
I have a 46Gal.Bow Seaclear System II tank. I am just setting it up now,but new to the tropical freshwater fish world. I understand the pre-filter and bio balls for the biological filter. I do nt understand the third section for chemical media. I am think carbon media. But how is it placed in the so called cup? Loose granules, granules in some filter bag or something else altogether?