I've tried it and it's not the best for me either. From what I gather its much more of a tidal, even brackish, plant and wonder if it needs some salt to do well submersed. I've had some monster emersed plants in the past though.
I have exactly the same result as you with C. ciliata.HeyPK said:It doesn't grow too well for me. My plants only have two or three leaves at any one time. As new leaves grow, the old ones die. I wonder if it is not very well adapted to submersed growth.
Kasselmann writes about C. spiralis existing in many varieties, most of which do poorly underwater. There is one known variety from India that does well and multiplies underwater. I wonder if C. ciliata is like that, too.
Is anybody else having better submersed growth with this plant?