hmm.. what kind of setup are you thinking about?
, FWLR, high nutreint reef, low nutreint reef?
a wet/dry is likely not going to cover all your bases.. its primary design is for arobic biological filtration only..
anirobic biological, plant bio-mass biological, mechanical/protien solids removal, serilazation and chemical are not covered very well or at all.. of course not all types of filtration have to be used..
It sounds like some questions about general filtration system design would be in order?
most recomend a book for this material (Ive kinda gathered the information over the years from reading alot of diffent publications)
arobic biological would be wet/dry bioballs, biorings, skiltered glass, filter floss sponges and on and on and so forth.. (pretty much anything with surfase area)
anirobic biological would be your LR
and or substrate (mostly conserning DSB
or Jambert/Monico/Plenium method).. anything with low O2
surfase area (very simple explanation of whats going on)
mechanical (this goes along with the media that does arobic biological) anything that can trap particals pretty much..
proten/sludge removal.. protien skimming.. phisical removal of desolved protiens/fats solids and such.. hard to do any other way really..
plant bio-mass biological... refugium being the most common (macro algae cultureing to remove nutrients from the system by purning the algae) Ill try not to get into less common methods..
chemical filtetration.. most common.. carbon or purgen (*?*) removes unseen impuities and polishes the water..
and ozone.. not as common as it once was, needs to be used with skimming chemical filtration to make the most of it.. using O3 and UV
together is very sterilizing if your intrested in such methods..
Im not going into the pros and cons. I think there is plenty of oppinon's out there about that..