Ive had these zoa about 3 months and they opened everyday just fine. One day i noticed a few was not open then more and more until none would open. They are in a 46 bow with T-5 lights. All tests look great. Tank is about 1 1/2 years old. It is hot so temp is around 80. They did start this about when the temp outside started getting over 100. I have sevaral othet coral, ricordea, duncans, brains, etc. All of the other coral look great. Its just these zoanthids that will not open. I have some nukes that open and look good and some palythoa grandis that looks great. Ive tried everything with no luck. I dipped them so no bugs that I can see. They dont look like they are dieing just will not open. PLEASE HELP going crazy with worry.

