I also need some help with lights to, because I keep getting different answers when I look up what high light or low light is.
Two 13W 6500K CFLs in an incandescent hood, over a 10G:
Without expensive test equipment that few have to give exact figures, light is subjective; and that's why you get different answers. I tend to classify lighting more by how plants behave, since they produce better guesses than I can. And they tell me this is medium lighting.
* Mostly inert substrate.
* Ferts include iron, traces, potassium. I mix my own liquids from dry ferts. Commercial liquid ferts work just as well, so long as you provide enough of all these nutrients.
* I do not dose nitrogen or phosphorus. No need. They are supplied in excess by fish food/poop, with the tank stocked to near traditional capacity, and daily feedings.
* Excel. It's a must for this lighting level to supply carbon, unless you have DIY/pressurized CO2 or a dirt substrate.