My guess is you are getting more usable light than before with 50/50, and nutrient usage is faster and requires you to dose more. One or more of the nutrients maybe running out. Some plants may show signs of stress faster than others.
There is the clue. In high nutrient tanks, Eusteralis is almost always greener than colorful. I have read posts people stress eusteralis too much with lean nutrient levels, they do get it colorful and then it almost died. Some people like to stress macrandra into red color, but my rotala macrandra is actually blood red in high nutrient levels.cousinkenni said:Shalu,
My Eusteralis isn't showing any signs of nutrient deficiencies, plus it is more colorful (pink red and purple) than it has ever been.