So now my tank is full of green. Wow, this stuff gave the tank a visual punch. Even though it looks really disorganized right now.
I achieved that with some stems you see on the right there, but dang it was hard to do. The largest pebbles I had were too small and the stems break easily, so attaching ends to little rocks with tiny rubber bands didn't work so well. I finally gave up and stuffed most of the remaining stems of it into an aquatic plant pot (more like a plastic basket) which is that big mass on the left. I have two suction cups with little ring clips and I put a few stems into those, anchored low on the back wall. Those bunches look pretty, but can't really admire them with all the other stuff in front. And then I just threw the remaining short stems in to float on the surface.
The fish sure are enthusiastic about the hornwort. They are darting all around and picking through it with lively action. I like to see that.