Join Date: Nov 2007
Location: NYC & Long Island, NY
You could have a couple microrasbora, but you really want to watch filtration in this tank and keep track of water quality. The other fish you're describing makes me think of the celestial pearl danio. Not sure if thats what you're talking about. They're tiny tiny tiny but shy and expensive.
And yes, rhizome division will work. The portion with the one small leaf will be slower to grow, but it shouldnt die.