Lighting needed for growing green & red macro plants?

pitmindi

New member
Hi, I am thinking of changing my 120 gallon planted freshwater tank into a saltwater planted tank with caulerpa prolifera, blue ocho and dragons breath and red macros. I am currently growing them in my red sea 34 gallon seahorse tank and they are much easier than the planted tank, which still looks awful after years of trying and battling constant BBA. My red sea tank has power compact with a 55 watt 10000K and a 55 watt actinic, but what is the minimal lighting that will work?
 
does anyone know what type of light is needed for plants for a 120 gallon tank that is 15" deep? Is blue light needed or just white light?
 
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