[krisw]

This thing can grow submerge ? In my country,its grow in any landscape that near the water source.If it can grow,i'll try

Yeah, this is a wonderful plant submerged. In lower light, it will grow tall like in this picture, but with med/high light it can be an excellent glosso replacement, as it creeps along the substrate. But, unlike glosso, it grows fairly slowly, so you don't have to replant it as often. Also note, that submerged, most of the leafs look like a darker green version of glosso, not a four-leaf clover.