Ok. Writing update on my last week which was horrible. First and most importantly, on the last day of vacation, i lost my dad!! On that same crazy day we lost a peppermint angel and the big system must have finally got the cp toxic levels. Lost my anthias and crosshatches. Fish looked real bad. Like eyes burned out hanging on bottom. After two 5 k gallon water changes , two carbon changes and getting skimming going on , the fish look better. Appetite is returning but there may have been some damage done yo some fish and small effect on biological filter. We are in stabilization plan just going to continue plan . One or two more water changes before uv goes back on. Ive been warned the possible effects of uv on cp toxicity. !! Then ozone. Still more interested in fish behavior more than water clarity now. Still there is something not 100 per right with some of the fish. Unclear if bothered by trace ammonia registering or after math of toxic cp levels or the original infestation is not gone. If there are flukes still they are prazi resistant so we are watching if we need to do another drug or going to go hypo In meantime it looks like everyday better so on right path !!