Someone please give me some help, total water volume 67 gallons, blue tang, yellow tang, bristletooth tang all 2" +/- week ago had few spots show up on blue, was told to raise temp to 81 - 82 deg add uv sterilizer within 3 days should show signs of going away, wich it did. Until I did water change last night 14 gal temp salinity all same, oh and always use ro/di water, woke this morning to find mass outbreak on blue and yellow tang hardly anything on bristle salinity is 1.022 - 1.023. Can not treat tank due to inverts and lots of LPS & SPS also nearly impossible to catch fish due to all LR in tank. What are my option's please help, I think I am panicking more than fish are, lol really due to wife raising you know the rest........lol Any ideas appreciated