Combined with either the 8.5" flood reflectors, http://www.plantedtank.net/forums/10-lighting/153195-my-inexpensive-cfl-light-solution.html or with an old incandescent lamp hood for a 20 gallon tank...I'd like to get medium light if possible but on a budget. I have one 18" elive LED strip with 3.5 watts and 320 lumen. And 2 18" elive LED strips with 3 watts and 190 lumen each. I was using those on other tanks. Plus a basic Marineland LED strip with 6 white LEDs and 3 blue LEDs. No other info on this as it came with the tank purchased off craigslist and I can't find the model number (01F33) online. Are those 4 units sufficient or should I add more? I'm very new with plants so thank you for your patience.