Hey guys, new to the site and hobby. Have some questions I hope I can get some answers to based on your own experiences and knowledge. My first question is I have a 40 gallon tank, 16" tall. I have a dual T5NO with a 21W 6,700k bulb, and a 21W colormax bulb. I was wondering what kind of light I am getting to my tank and is it sufficient enough to grown some low to medium light plants. Thanks for all of your help.