Stuck Fish; Now There All Stuck and Dead!! HELP!

[bubblepuffer]

I got a fish stuck in a cave that narrow in the end.. the top fin pop up and unable to get the fish out. I even took the rock out and shake it still no luck. After 1hr of fighting it and gave up. Put the rock back upside down....the next day woke up with the fish swimming around

[Chin_Lee]

Unfortunately that fish looks dead. if its not dead, its pretty close to dead.

[bubblepuffer]

actually the fish survived and since that accident happen his behavior changed.. He became very aggresive fish and end Up I need to give it away after 2 months of harrasing Sand shifting goby.. with top of the tail gone from the fish chomping on it and my Porcupine puffer hiding in his cave almost 10hrs a day.

[King of the Sea]

I bought a bamboo shark same day i got it he went head first into a rock got stuck and died i payed 75 bucks waste of money

[Coderad]

Now all of my fish are dead. The all ended up the same way the coral beauty did pulled in to holes in the rock one clown was in the same hole as the coral beauty and the other clown was in another. I found one ugly looking crab eating one of the clowns. (Picture attached pulled off his pinchers pulling him out of the rock.) I don't know what happend they all seem normal. I had one clown for a little over a year and the other for about 8 months and the coral beauty I had for 4 months. Haven added anything new the last rocks I put in about 6 months ago. All water levels are good. 2 pepermint shrimp, urchant, zebra hermit, zoo's and snails are all fine. I don't know what to do!
Anyone have any suggestions?

http://i39.photobucket.com/albums/e1...d/PICT0002.jpg
http://i39.photobucket.com/albums/e1...d/PICT0001.jpg

[marie]

I would suspect a predator that has just discovered how to catch fish and I don't think it is that crab you caught.

I would leave the tank fishless and try to trap...whatever it is when it gets hungry

[Coderad]

What should I be looking for? Should I set a trap?