Help!

thoroughly

New member
Starting up a 75 gallon saltwater tank. In my live rock, I have a large purple bristle worm...over one foot in length, and a small flat blue crab. Something took a chunk out my percula clown, and two days later, fish eventually died. I removed the rock with the large worm and the crab. However, it was the next day that the fish died, and I could not find it, picked up another piece of rock, and underneath it was my fish, close to another worm..it was coiled into a few loops, was yellow, and about half around as a pencil. It quickly tried to scurry away, but I removed it as well. I am concerened that maybe I removed the other crab and huge bristle worm prematurely. Who is the killer???? Please advise...I have a great video of the worm coming out and touching my sand sifting sea star, but can't get it to post.
Thanks in advance!
 
My guess is it was the crab as it would be a lot harder for a worm to catch a live fish. Usually, worms are scavengers and eat dead things.

Best of luck,

Roy
 
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