So right now I have a 56 gallon column that I am trying to plant it has low to medium light plants. There are no fish and no filter on the tank yet. I only have a power head, light, and heater. The light is a 24" t8 florasun bulb. I want to do injected co2 but was wondering if I should first increase the lighting. My plants are being dosed with liquid co2 and fertilizer currently.