they seem to do well in all of my tanks, and seem to grow larger in low light, and spread more in high light. In my lowest light tank, some leaves seem to deteriorate over time, but they still look healthy and are spreading. These have got to be my favorite plants. I wish I had stuck with my plans for my 10 gallon, which I was only going to use dwarf sag and HC in... but I ended up planting some micro swords and a few other species... and the micro swords are a pain in the butt..