Nick,I keep macro in my tanks..chaeto will def blow around and it has to otherwise it will die and not grow at all that's what makes it grow the tumbling and flow. Calerpa I got from George looks nice sticks to the rocks. I actually don't have much left in my main dt because I switched some rocks around to throw some in another sump. Dragon's Breath is def nice but expensive and not easy to find. If you can find some at a decent price buy it..and let me know too cuz I want some lol