@marko@, getting things to turn red is still one of those great planted tank mysteries to me. Sometimes, the d. diandra will go orange at the tops, supporting what you were saying. More light (by being closer in this case) and they change color. But other times, even when I avoid trimming them so they have longer exposure to light, they refuse to change. Likely a combination of light, frets and water condition at the time. Someday I'll get that dialed in.