I woke up to find my reef tank looking extremely unhealthy, I lost color on my rock, my bubble tip looks bad, my duncan looks bad, my frogspawn looks bad even my poyps are closed!!! it looks like im about to lose my starfish and cleaners!!! my chemicals all check out fine!! I did a water change even so, WHAT CAN I DO!!!

How long has your tank been set up? Ammonia levels okay? Is there a CONSTANT water temp that only changes by a degrees or so. Is the water that you change out the same temp as tank water? Do you add nutrients to the water?

Any of these could be a factor, I would say temperature most likely.

test for copper. did u medicate your fish recently?

nitrates may be high?

change filter media?

but jweb it totally right, it very wel could be temp. my tank goes through about a 3 or 4 degree change some days, and i definately see the stress in my anemone

stop adding chems, iodine,stronium... test your calcium level..double check salinity.. and how old are your lights?

The lights are all new, new filter media and everything!! But its just getting worse!! There is a redish orange algae growing on everything realy fast! I lost my star fish ughhhh

Well...I lost it all! turns out, the dealer who sold me the R.O put far too much salt in the water, and of course my Redsea (horrible product) hydrometer broke, so it was giving me a perfect 1020 reading, when realy my tank jumped up to 1030...so everything is gone...we will see what happens