This is very sad! Just yesterday we were commenting on how happy and active and hungry our two clownfish were! We'd had one for three weeks, the second for two weeks. They were inseparable!
This morning, there was only one. No sign of the other. They were the only fish in the tank. I know there are a couple of hitchhiker crabs in there. They've worried me. Could they take out a happy healthy clownfish? (about an inch and a quarter long). There are also two serpent stars and lots of hermit crabs and snails, and a CBS. He wouldn't be the culprit, would he? He's never been aggressive. I've had him for two months, he went in with the clean-up crew. Tank was first set up in April.
I know you'll ask, so here are my test results:
Nitrate between 10-20, looks like around 15 by the color
Help, I'm so distressed!