I don't see much solid info about growing homalomea submerged. Here are two of my species. Sedaku south and another I believe was labeled "silver red"

Online you see people talking about a "red" variety and a "Tiger" variety with one of them (not sure which) being solid redish and the other being redish with a green center line. In my experience, I've seen the same plants range from full green, to red with green stripe, to soli...