Just saying because you have a lot of stems. I thought you were going to go a different route with the planting, ei... more crypts and those sort of plants. That being said, I've grown all of the stems you have currently in low-light systems without CO2 or dosing, the exception being the cabomba. But I can't grow cabomba no matter what I do. Too much mineral content in my water and I'm not willing to drastically change what I do to grow the plant.