I am considering switching out the fake plants in my 55G for live plants. My substrate is gravel and I currently have 2 Aqueon hoods that each house 1 18" T8 bulb. I was looking at getting Amazon Swords, Java Fern, and Anubias. As for lighting I was thinking of getting 2 Life-Glo 2 15-watt bulbs. Would this be sufficient? I've seen some other threads saying for a 55G you'd need 40-60 watts of lighting.