I highly recommend using canister filters in planted tanks, especially if you are planning on using CO2
injection. If not, then HOB
or sponge filters (for smaller aquariums) work fine for me. I personally don't see a need for UV
filtering in a planted tank.
Gene Heitman - 12 tanks (11 freshwater and 1 saltwater), 206 gallons, 20+ species of fish/shrimp/snails, 52+ species of plants ... 10 years ago I just wanted 1 tank with some fish