I had recently changed my substrate and now I have flourite as a substrate. However, I replanted all my plants. After everything was in I added the recommended dose of excel and added flourish and iron. i haven't add any co2 yet but my plants had turned transparent. i have amazon swords that turned pretty much transparent, and wisteria that is losing leaves. my riccia also turned white at the tips, i do not know why it turned white does anyone know why this happened? my riccia and other plants was really healthy before this. how do i fix it? i plan to add the co2 tonight.