What size tanks do you have? I have some extra coralife aqua light fixtures If you would like to buy them. They grow plants very well. I have one that will fit a 29, 20, and a 10 galllon rank. The 20 and 29 have 65 watt bulbs so that would put you in the 2watts per gallon on the 29 and 3 watts per gallon for the 20.
As for plants i will have some low light loving plants that I might can prt with.