so i buy and arrow crab and an emrald crap...to see who will do the job...well i saw the arrow crab eat one of the bristle worms..yea!!!! well now here is the damn problem....so i have 3 dragonetts...they have been in my tank for the past 7 months...and they are well fed. well teh last 3 nights i have lost one...first two nights i have seen one dead and i had no clue but the emral crab was eating it...i figured that he was just collecting the dead...well last night i saw him fall off the rock onto my last dragenett...well and before i could save him the crab got his claws inside of it...wich now i am less one more dragonett....anybody ever have the same problem??? my local fish store says this is impossible because emerald crabs are veggie eaters...humm