solbby said:Maybe, but there are more obvious causes. Are you sure you don't have redbugs?
I don't believe it's redbugs i inspected all the frags dave gave me they looked bug free. they did go for a interceptor swim though.
I think if the polyps are coming out at night dave the health of the tank is not bad. You just need to lower the temperature to an acceptable level.
and get a thermometer that you can trust.