The type of lighting that I have on my 10 and 20 gallon tanks are: LED
, incandescent bulbs, and full spectrum florescent bulbs. The types of low light plants that I have are: annbus nana, Java moss, Java fern, and Morimo moss balls. I have been turning the light on for 4 hours, then off for 2 hours, then back on for 4 more hours. Thank-you for taking the time to respond.