Worm in WT tank

[sorin_ss]

Hello,
3 days ago i buy a new Chelmon fish. Put in QT tank, add cupramine abd after 3 days he die. No eat at all.
Today i throw away the fish and when i clen the QT i see this worms. I do not feed it with live food.
Any idea what it is? Parasitic or else? I made another order for other chelmon from same dealer and i want to know how to treat it.
Thank you
I can’t atach a movie but the worm is alive and move

 

[musel101]

Hello,
3 days ago i buy a new Chelmon fish. Put in QT tank, add cupramine abd after 3 days he die. No eat at all.
Today i throw away the fish and when i clen the QT i see this worms. I do not feed it with live food.
Any idea what it is? Parasitic or else? I made another order for other chelmon from same dealer and i want to know how to treat it.
Thank you
I can’t atach a movie but the worm is alive and move

Not sure maybe baby bristle worms?

 

[sorin_ss]

Not sure maybe baby bristle worms?

It’s a brand new QT tank, only with a pvc pipe for shelter.