Would anyone be able too help me out ? I have a 75 gal. with a wet/dry, can't stand the bio-balls. I'vd like to remove them & put live rock in it's chamber instead. This IS new for me ya know & hoping someone could give me some tips. On the 75 gal. there are a total of (3) filters, the wet/dry like I said & the biggest canister filter that Fuvual has, Also a Emperor, the size with the (2) Bio-wheels. tank has been running now for about 3 weeks or so. I also have 4 inches of marine sand ,a UV light & a protien skimmer...Like I SAID "Can anyone help me out with some tips on to making my system better???:help: Thanks, Dee