flat worms can really make or break you. most people throw in the towel I would throw away any sps that show signs of AEFW and remove the rest and dip them and put them in a sep tank with wrasses then redip them in about 2 weeks just in case you get some that hatched from eggs... then dip again after another week as for the other tank i would dry out all the rock and drain everything and leave it in the sun for a week or so. I used tropic marin pro coral cure. When you have a sps tank or just a few you must never forget to dip even if you feel the other persons tank is clean or so they say..