260w of pc (2x 65 actinic, 2x 12,000k) and a 40w (marine-glo actinic) standard fluorescent tube over a 55g. placement is about 3/5ths off the bottom of the tank. not too sure if lighting would be the issue though. as i have other zoas as well as a few mushrooms and an anemone at the very bottom doing fine. also have other zoas and mushrooms placed at the same level as the ones pictured and those are also doing fine. these zoas in the pic came looking exactly as they do now. they look good in person. always open unless they get disturbed by a shrimp or something. i've just never seen them vary in height so much if they are zoas. but then again, i am new to corals, so it may be very common for all i know....
