Do you have to add fertz if you use C02 and high light?
I'm learning as I go, so don't crucify me if this is a dumb q, but am I setting my tank up for failure by not using some sort of fertz? I thought I was going to have a rather low tech tank, but the more I read, the more I think maybe I'm wrong. My tank is in the 'well lit' category according to essabe's spreadsheet and will have DIY CO2 added next week. I was looking at PPS Pro, but just wondering what's the downside if I don't fertilize the tank.