When you up your light you can get just about anything. Right now with 1 wpg and a 20 high I think you might just have to stick with mosses, javas and anubias. Even that's pushing it with 1 wpg. The hornwort is a floater so it's usually closer to the light.
It is a 20H I hope to bump up to 2-3 WPG in a week. Maybe suggestions for the same light and suggestions for the upped light. When I see what I'm going to do then I will get more plants! I want some more variety and I plan on using these to fill a 75!
I heard you on the podcast and I was wondering what advice you could give me on how to progress a 20 gallon tank with hornwort and am. swords. What would a next level plant be. I have CO2 and 1 watt per gallon of light.