Hi, 5 months ago I had 5 of my 6 clams die of some strange disease.Their mantles started receding,they started gaping and were dead within a week.My water paremeters were testing fine and my corals were flourishing.I was feeding DT's and home grown phyto.They were growing well before this happened.The only survivor was a deresa.I was recently informed by a fellow reefer that something like this was going around on the west coast awile back.Does anyone know anything about this? My deresa has been stunted since this happened.I want to add another clam but don't know if I should.Could the deresa still be carring this disease and infect any new clam? Thanks