I originally thought it was my UV
light, there was a film of dust like substance in the UV
and the UV
smelled real bad like burnt plastic so I thought the UV PVC
somehow broke down and released something into the tank. The tank water was cloudy like someone poured milk in it. The pump on the UV
stopped and the UV
was super hot.. All my corals looked like crap. I lost several corals or parts of corals and 1 fish right away and others never recovered and died months later.
I am still not 100% sure what it was, all water tests were fine. I was ready to break the tank down after doing several days of water changes and nothing was getting better. A LFS
let me use there diatom filter as a last resort and within hours the tank was clearer and after 24 hours it was crystal clear. I almost packed it in after that... After a year my tank is finally back to where it was, except for the coraline algae on the back of the tank just wont grow much any more? The back was covered before the crash.