In the back right is Rotala sp Bangladesh. Grows like a weed for me. The red plant is Rotala macranda. It's tricky but worked for me in medium light. I just had to top it and toss the bases every so often.wow lol, i would of assmued dry ferts would have been too much without additional co2. i still yet to try any "high light" plants yet but im having sucess with the medium light ones so far. what type of stem plant is that in the back right? looks like some type of ambulia? btw love the red plant, that lugudia?