Sent from my iPad using Tapatalk I have lost in the past two weeks 3 BTA and 1 carpet that was the clarkii home that was 17". He moved around this week beginning on Tuesday and traveled from one side of the tank to the other, back to front of the tank, went twice up to the filter (all in three days) and found him dead - like mush yesterday morning and had to throw it into the toilet for fear that the film would make the water worse. Did a water change after that and used the Red Sea tester and everything was normal. I also lost 4 fish without ever finding them so I am assuming the nems ate them. Only problem I have been having is green algae which I added emerald crabs to help and a nem crab (he is a bad ***) and have been doing water changes weekly. The one thing that triggered my tank was when the clarkii left. Too late for pictures but will send tomorrow with exact readings of the test results.