FIlters in moderately to highly planted tanks mainly function as mechanical filters. PLants for the most part take care of biological filtration.
If you plan on going the powerhead route, you might want to do so such that you can use the hagen quickfilter attachment. This will let you clear out suspended particles when they become an annoyance.
If you plan on going the powerhead route, you might want to do so such that you can use the hagen quickfilter attachment. This will let you clear out suspended particles when they become an annoyance.