So I have two frags of Zoas that just do not want to open. I put them at the bottom of the tank in low flow, worked them up through medium and high flow (with low light. Nothing. Then I tried low flow with medium and then high light. Still nothing. Now I have arrived at high light high flow and have done every combination of flow and light I can think of. Still. Not. Open.
If anyone has any advice on what else I can try, please let me know.