:worried: :worried: okay, so i have just got my 55 gal set up going, i added water, LR, LS, lighting, filtration etc... after about a week of cycling i decided to add some damsels to help it a long a little so i bought 3. after day one all was good. levels fine everything great. couldnt be happier.. day two i noticed the smaller of the 3 looking a little roughed up didnt think much of it since damsels are known to be aggressive, figured no worries right? well day 3 he's MIA cant find him any where i only have about 2 rocks in there one of which is like a 20 lb huge awesome center piece of Fiji LR. so i moved the rock to see if he had died and made his way under there. nope. puzzled i went to work and came back and realized another of the damsels was looking beat up too... so now i am completely confused checked the ph and nitrates all good. the fish just looked sick and ended up dying so i flushed him well i was looking in the tank at my one lonely fish and saw what was left of my 1st missing damsel stripped to the bones and nothing left but bits and pieces of a almost completely eaten fish the thing is he was half stuffed into a hole on that huge piece of LR in my tank. i guess what i am getting at is: could there be something still living in that rock that is going to keep eating my fish? i have heard of all kinds of things living in rock and transferring to your tank but, a killer creature who eats my fish LOL i mean is that possible and if so what the heck could it be?