Update:
Changed 25% again, added Chem-pure Elite. No change, yellow polyps looking even worse and are starting to disappear from what was a beautiful cluster 3 weeks ago.
Removed Chaeto, light from back of tank, clean it GOOD...removed tons of dirt, replaced hoses to chiller...At a loss
Water parameters still very good and nothing out of the ordinary.
ANY SUGGESTIONS? I am seeing lots of string, brown algae that is growing like crazy on the rocks & corals..almost overnight! It forms little gas bubbles as it releases and floats to the top.
I can only think of a massive water change, but that seems drastic.
Oh...my second clown fish(almost 4 years old) jumped out of my tank...from where I have no idea...literally no holes big enough. That makes two from this tank...weird