In my 75g I four tiger lotus. Two are red and two are green. Now the red lotus grows like a plague and fires out multiple runners each week. This is quite good because my LFS gives me credit for them. On the other hand, the green lotus grows really slow and never puts out runners. It's really no big deal because the green lotus has got fairly large over the months anyway. I'm just curious as to why there should be a different growth rate. Same tank, same lighting, ferts, etc.
