Hi I have a full sps tank . color and its excellent growth conditions. However, I don't see any polyps during the lighting of the I use a zeovit method
Many times, polyps only extend at dusk and night and can be caused by lighting or fish that nip at polyps.
If you are getting good growth, I would not be overly concerned with polyp extension during day-light. Do you get any polyp stimulation during feedings?
If it’s all growing, it’s not a problem. I use Zeo too and while I’ve had tanks that were extending all the time, my current tank doesn’t do it that much.