So i bought 4 large bubble anemones from LIveAquaria and they came somewhat normal looking, one with small parches on the body but I thought it was just coloration. Those white parches turned into ulcer like tissue and some of the anemones have began shrinking, detaching, mouth gaping, and melting away... is that some kind of infection/parasite? I have watched the anemones carefully and nothing should be eating them... or biting chunks.I only have a single clown and porcelain anemone crabs with them... The only anemone that was actually hosted by one of the crabs appears to be the only one surviving rn