bjc90 Posted October 27, 2011 Report Share Posted October 27, 2011 OK now i basically wanted to ask everyone why do people still use bioballs in the first section of their sump then start to use matrix in the next section over? Is it just a cost issue? Obviously not all are like this, but i have been going through the sump pics and it is very common. cheers Link to comment Share on other sites More sharing options...
steve6610 Posted October 27, 2011 Report Share Posted October 27, 2011 some people prefer bio balls, some people don't, i have bags of bio balls floating in my sump, its just what i do, can't hurt, but might do good, i start with dacron, then jap filter mats, then bio balls, bags of noodles and coral pieces, then some matrix looking stuff, lol, it has nothing to do with costs, to me its more about using what i got in buying/getting given bulk dry goods, i use what i have, seems to be working great, also have a few bags of purigen also, Link to comment Share on other sites More sharing options...