Hydrocotyle Sibthorpioides

[Welsh]

I'm not sure what this is I found a single stem among my Crypts a couple of weeks ago and have been trying to find out what it is, ever since. At first I nearly threw it but I decided to see if it would grow, and it is, I just don't know what to do with it. Do I just grow it as a normal stem plant, or can it grow as a carpet plant?

The plant is growing under 7.2wpg, with small doses of flourish comprehensive.

Thanks