So, as I finish up my sump here I have one last question left to ask. What lighting would be best for the sump in order to best grow macro algae? I would assume that because its a green plant, a more "standard" freshwater planted tank tube would be the way to go? A flourescent in the 6500k range? Or should I get some other type of lighting. Thanks to those of you with experience growing macros in your sumps