I have a few red plants that should be red but isn't so I would like to know besides good lighting what else I should be doing. I dose EI weekly at the moment but that might change. I have a 75 gallon tank with pressurized C02 and ADA soil. I just changed the light strip and its 65 watt 6700K. Its on 10 hours a day. I have two Coralife light fixtures and only changed out the lights on the back one as the plants that need more light is at the back of the tank.