i member looking on here and seeing a thread with a comparison showing most popular media ppl use and the amount of surface area they have on them like bio balls, bio max, pot scrubbies... anyone have a link or know where to find it ?
ive been doing some reasearch and debating between bio balls and pot scrubbies for a custom sump this summer... anyone able to help ?
ive been doing some reasearch and debating between bio balls and pot scrubbies for a custom sump this summer... anyone able to help ?

