I am writing for my mother. She has a 75 gallon that has been set up for 7 years. She just added a Pink Trigger to her reef and he has brought disease to the tank! He is covered in, what looks like ich. He also has white stripes, looks like scratches on him. In the morning they looks pink but then turn white. Now the dragon goby is covered in ick, the Yellow tang has a cloudy eye and the lawnmover blenny had spots on his eyes too!!! Her mandarin looks OK, the ocellaris looks OK, fox face looks good. What can we do??? They just lowered the salinity and that is not helping. They dropped it to .019 instead of .021. What else can you do in a REEF tank???