How to Find and Kill Evil Hitchhikers

[Salmon King]

A few years ago in my reef tank I spotted a red and black crab.It was neat looking so I left it in the tank.I had a purple and a Lavender tang dissapere.The next time I saw that little crab it was 6 inches .I caught him and never lost a fish again.A friend of mine had a large brittle star and a bunch of damsils in a tank.He was loosing a lot of fish and could/nt figure it out.One day he saw that star fish snag a fish.He said it was really fast.I always thought they were slow like slugs

[BCOrchidGuy]

I had a green brittle star that would move 3 feet (across a 33 gallon in a second or less) and grab a damsel for breakfast, the star ate all 3 damsels in 3 mornings, after that I took it back and bought some keeper fish.

Swollen gills eh? any spots on the gills that you can see, are they pink still or discoloured? Any new rock, coral or fish added that was not QT'd? I know it seems we are not listening but we are and we'd all like to figure this out with you. Normally if the culprit is a crab, mantis etc there will be physical trauma to the body, seeing as this is not the case environmental issues/concerns or disease look suspect.

Doug