Hi all. Did a quick search but didn't find what I wanted (man search ). Basically, I'm wondering if there are any hardy cheap plants that can survive without CO2, Fertiliser, and in a gravel only substrate? Ideally I'd like them to be hardy and low maintenance if such plants exist. I do have an air stone which the mollies in my tank enjoy playing around, so I'd like to keep that. My tank setup can be found in my signature below. Lighting is currently unknown, although I presume it will say on the bulb?