Lost fish!

[Graham_f]

ha, no crabs... ive been thoroughly checked out every rock before putting them in. And have used bait and traps just to be sure. No evidence of anything.

[reefwars]

Could be mantis as well they go longgggg time without being noticed, good sign is your crabs beimg knocked off.

Average cuc will get rid of evidence very quick if natural death occured

[Coralgurl]

Are you sure it didn't jump? I found a pretty dried up royal gramma under the back of a tank when I sold it. Was missing for months before I bought a replacement.