My tank currently has less than 1 watt per gallon and have an unknown amount of kelvins. Because of this, my tank plants are probably reaching a slow death. I let sunlight in, but I don't think this is enough. I've been considering buying T5 HO fluorescent lights to replace my cheap Marineland LED lights which aren't suitable for plants.
These lights would be 48 watts for about $45 or 96 watts and lunar LEDs for about $80. Both would be plant lights (6,500K) and both are from the same company (Odyssea). My tank is a 20 gallon tall tank. What do you think? Is this worth it?
BTW, how often should I dose my flourish excel? I dose it every 3 days with 1/2 dosage each time because of my vallisneria.