How quick can crab & pistol devour dead fish?

[IAMC]

Total of 6 anthias and one orchid dottyback. 3 anthias are missing plus the dotty. 2 visibly dead and another being devoured atm by strawberry. Last night all anthias were alive. This morning at 7am there were 4 anthias visible. Came home to 3 dead and 4 missing.

Question: How likely is it that my two pistols and strawberry crab finished the 4 missing already? No snails.

 

[IAMC]

Please see thread "tang illness" for story behind deaths. Porcelain crab is a resident as well.

 

[NanaReefer]

Not probable in a 24hr period. Is the tank covered?

 

[IAMC]

Yes it is covered.

 

[NanaReefer]

Got Bristle Worms?

 

[IAMC]

To my knowledge, no. And I doubt it.