There's not a lot of actual, literal, trees that you can grow in your fish room, but this is one!

I keep it growing in the backs of one of my tanks with the roots in the water. I have a driveway flood light pointed at it, and it grows pretty fast. I do fertilize a few times a week, but I don't do anything else.

The parent plant from the pictures is about 4 years old, and was about the size of this cutting when I got it. This cutting was made about 8 months ago, and is fully rooted and established.