Hey guys so i have just lost both of my clowns today. I have had them for about 2,5 months and they have been thriving eating and not showing any signs of sickness at any point until today. So this morning when i got up my smallest clown was laying on the sand breathing heavy, i fed the tank to see if he would get up but no response i then gave him a freshwater dip to see if any parasites where irritating him but nothing came off him. I then had to leave for university and when i got home in the afternoon he was dead.. no visible marks on him, no discoloration or anything just sudden death out of nowhere. Then just 10 minutes ago my second larger clown, who had been looking fine and healthy all day also eating fine this morning started spazzing out and within 30 seconds she completely stopped moving and is now also dead... again no visible marks, discoloration or anything. My tank parameters are all good, 0 ammonia, 0 nitrite, 2-5 nitrates, about 25-26 degrees celsius, 1.025 salinity and around 8 alkalinity. I also have a midas blenny who's looking perfectly fine so i quite frankly dont understand whats going on.. i'm quite sad i have lost these two, and not knowing what the heck happened does not help. Would be nice with some input on what could have gone wrong