Hi all. I've been trying to get a bright red stem plant to grow and keep its color. My tank has high light, CO2, I dose a liquid iron fertilizer, and I use root tabs. So far, I've tried rotala h'ra and a ludwigia (can't remember exactly which.) They both grow well, but they stay orange. It's nice but I want something RED to go with them. I think my high PH (7.8) and obnoxiously hard (150-300ppm GH, 180-300ppm KH) water is my problem. Anyone have any idea for a good red plant that'll stay red in my water?