Hard COral Diseases?

[Nexus13]

Originally Posted by o.c.d.

Temp flux may start to cause havoc in smaller tank esp. Check in the morning and after the lights go out and see how wide the flux of temp is esp of a hotter day. Make sure you thermometer is accurate many are way off. You can pull it and cross check it with your home thermostat. Just another thing to check. Your salinity and how are you measuring it ?

therm is good (just checked)

and salinity with a refractometer.