I have multiple of these guys. They can grow planted in the substrate, attached to something, or just floating at the surface of the water. Since I have a waterfall filter in my 20 gallon fish tank, floating plants generally don't do well there. The waterfall carries the plant underwater, and pretty much harrasses it. So I put them in the other tank with no current. They are growing really well. They might grow a little bit out of the water. That means that it's growing well! But, it will probably be burned by the light, so just give it a gentle shove back into the water. Temperature: 68-86 degrees farenheight. Soft to moderatley hard water (though it doesn't really matter). Enjoy, and have fun!