Hi,
Thank you Steven, glad you like it..
Kevin, both I guess, light and iron bottom, and not to mention the usual water column ferts. Sadly though, after a big water change (after rescaping, replanting etc) the P. Stellata, stunted. Sensitive plant, could not take drastic changes, I guess. It is narrow leaf P. Stellata. Broad leaf P. Stellata, less sensitive..
Regards