I dont know what has happened but my fish seem to be taking a turn for worse one by one. I have two female lyretail anthias that out of no where on friday were breathing extremely heavy and hiding. Both have patches that appear the scales are shedding and one had half of its tail missing. At the same time my solar wrasse and coral beauty have displayed long stringy poop. This morning I came home and see my lemon peel has half its tail missing and appears to have red irritation at its gill openings and is breathing heavy and swimming very differently. It seems as if I having a catastrophic event of multiple infections????? The tank has been running for over three years I added the anthias plus one male almost 5 months ago the lemon peel has been in the system two years and up until friday they were fine eating swimming active? If this is something bacterial is there anything I can do to treat them in the display tank without destroying the countless pieces of coral I have as taking the tank apart to try and find the anthias and sneaky lemon peel is not an option. Any advice input would be appreciated as I hate to watch these fish suffer.