I have a freshly set up 40B, with 3x 13W CFL's over it, high but the tank still gets good (low) light. I only have Anubias, Java fern, some Hygro compact, crypt lutea in there, so mostly all low-light plants. I do have some telanthera, but to be honest that's not going to to so well anyway (impulse buy!)
My question is, with no CO2 (not even DIY), does dosing small amounts (like the above chart, once or twice a week) hurt low light plants? Or would the benefit be almost nothing? I don't mind trying EI but I don't want to super overload my tank if the plant's aren't going to use it/benefit.