Yep I lost several pieces of my valida as well. They were the first to go and I had no clue what was happening. I thought it was my water or new lighting. I dip everything in Revive prior to placing corals... it did not kill them all I guess. Even when I saw this post and dipped all corals in Revive, not all of the flatworms came off. When I did the Betadine dips, it was nuts how much stuff was falling off.
Since last nights dips, nothing has died yet, and the tissue loss has stopped so far. I did lose one of my favorite acros when I dipped it in Revive... I guess it was too far gone to save although it looked like it had no no flatworms at all.
I have lost about $600 worth of corals...
A few of the ones left are brown for now, and the others are luckily colouring up now. I tried to frag some of them, but most did not make it anyways. I should have QTd the corals after dipping, but these were all from the same place, and my dipping methods for prevention proved the be a failure.
Time to think of a new master plan... I don't have the proper lighting on the QT tank for corals either, just fish. I can't even give these corals to a new home, since they are infested with flatworms...