On Sunday with Coral Reefer's help we took most of the rock out of my 55G tank and captured the three engineer gobies. Without removing the rockwork there would have been no way to catch them as they had built a tunnel system under the rocks that made Tora Bora look like a sand castle on the beach. As got everything back together I noticed that one of my clownfish was gone, the larger 2" female has entirely vanished. I've searched the carpet and every nook and cranny nearby the tanks with no evidence of her. Since there's nothing outside the tank I assume that I accidentally squashed her with a rock putting the tank back together. I'm pretty sure that a 2" dead clownfish is too large to just let decompose in a 55G tank. I've removed all of the rocks from the tank (again) and sifted all of the sand for her corpse. I don't think the nassarius snails could have cleaned up that quickly or thoroughly. (less than a day). I've found absolutely zero sign of the fish. Nothing. I'm really pretty bummed that I killed a paired fish and feel worse that I can't even find the body of a 2" fish. Can the remaining male clown be remated to another fish? My understanding has been that putting another clown fish into the tank wouldn't be advisable as one or the other would likely get killed quickly.