Zoa/Paly ID Help

[tinhorse]

Funny thing is they appeared out of no where. I bought a 5 year old system a year and a half ago. Crazy bad algae issues. Fixed that up, changed out the led lights and things started to improve a lot. Dosed fluconazol to slow/ kill the hair algae and since then, (roughly 11 months ago) tank has been great. Added new LPs and sps that have all taken off. Those orange zoas started on one rock and took off. Neat what shows up when water and light are improved.