Welcome! Don
Well it looks like your tank is doing the whole cycle thing. Was the LR you got fully cycled already? If not your tank is porbably doing the cycling right now. Have you checked your parameters? We need to know what your ammonia, nitrite, nitrate, ph, and phosphates would be good too. What wattage and type of light are you running? I am sure that the green will pass, and the whole tank will start turning purple soon.
Tom