Basic pump or Filter

[mother nature]

I am setting up my 175 gal viv (72"L X 22"H X 18"D) I would like it las low maintenence as possible. I have researched a lot, but I never find out if anyone uses a water filter in addition to their water pump for their waterfall. I don't know how easy it would be to change filters or hide it, but if the plants, natural bacteria and bi monthly water changes will keep my red eyes happy, then i will continue without the filtration system. Thanks

[Epicure]

put a sump in line and use some floss filters if your to concerned, but just keep an eye on her, and smell, taste if ya want , but should be alright, anyone ever use carbon?

[mother nature]

I did for my small tank. I had to replace it after a while and that was a mess. It really didn't make that much of an improvement so I stayed away from it this time..