moderate flow along with moderate light ,placement is bottom to mid level , it grows at a steady pace , so monthly trimmings may be needed, if you have herbivores they will snack on it ,
By the way where did you find dragons breath , I've been looking for it for a long time ,
the guy I buy my macro's from gets only small amounts and sells out fast before I even know he got some ,
I got it off eBay sitting in the sump atm until I glue it to the rock. I like the colours of it going by what you say I doubt it will last long with a tang and a fox face!
If you can keep it growing in the sump , you may be able to keep a extra supply If you have a good light over your sump, when ones gone just add another