It's just funny to me how times change. Years ago, maybe 13 or so, wet/drys were exclusively for saltwater tanks and canisters were for freshwater tanks.
But now your saying that wet/dry filters are for freshwater and you should avoid them.
I ran a 55 gallon exclusively with a wet/dry filter filled with bioballs, and while it was a FOWLR, it did great, always sparkling clear, and no problems what so ever. In the "old" days, nitrates were always removed by weekly or biweekly water changes, but now we need all these new fangled devices to eliminate nitrates, that can still be removed by regular water changes.
HMMMM. Go figure.
While I agree that skimmers have their place, wet/dry filters are still in use today, and do just fine. You should see my LFS show tank, it's huge and they tell me that it's still running on the same wet/dry filter thats been working for it for the past 14 years with no skimmers and you should see the corals in it.
Hmmmm, Go figure.