I know a ton of people run these, so if you use something other than the usual sponge/carbon/bio or sponge/sponge/bio combinations, speak up. Let's keep this to AQUACLEAR HOB's ONLY! Nothing theoretical please, just what you have personally seen work well. Also, let us know what size AC you are talking about & list media from bottom to top. I'll go first!
AC70
AC sponge/Rena SuperMicro 2-stage pad/polishing floss/Biomax bag
AC50 (w/ AC sponge prefilter)
AC sponge/Rena SuperMicro pad/AC70 Biomax bag
AC70
AC sponge/Rena SuperMicro 2-stage pad/polishing floss/Biomax bag
AC50 (w/ AC sponge prefilter)
AC sponge/Rena SuperMicro pad/AC70 Biomax bag