there lies your problem.
You have light and traces and no carbon.....growth of algae is inevitable. Go get some Flouish Excel and dose it 2 times normal dose for 5 days then do a 50% water change, then start dosing it as recommended, daily. You want your plants to grow, not your algae. Your algae is taking up all of the little bit of carbon and flourishing, while your plants suffer and start to die.
Eheim Chickie #203 Filstar Pimpette # 56
90 gal acrylic, Coralife Aquapro 150x2 Metal Halides, 55x2 50/50 PC, 3 lunars, Hydor inline, 9w TurboTwist UV, Pressurized CO2, Rhinox 5000 glass co2 diffusor, Rex Grigg CO2 all-in-one, Milwaukee pH controller, 2 Eheim Pro II 2026's, Filstar XP3 backup, lilies, Eco Complete, Greg Watson dry ferts, EI mod