I'm debating. I'm just shooting for low lit plants and nothing too serious. But then again wouldn't mind adding some nice ones as well. Over all I want to blanket the bottom with green grass like plants. So eventually I may have to.
Sounds like you might have to end up doing the C02 set up. You can just stick to the synthetic C02 as well such as Flourish Excel. Depends on what kind of plants you'll be branching into. Hope it helps.