Help ID Please

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Brisk

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What is this? Is it good or bad?

20240910_121149.jpg
 
Is this work safe? Sorry for the many questions. Just got my live rocks in today and they don't look familiar to the hitchhikers guides.

20240910_133847.jpg
 
Is this work safe? Sorry for the many questions. Just got my live rocks in today and they don't look familiar to the hitchhikers guides.

20240910_133847.jpg
Common bristleworm and reef safe although not welcomed in my tanks are considered clean up crew and eats uneaten food and detritus
 
What is this? Is it good or bad?

20240910_121149.jpg
Is this work safe? Sorry for the many questions. Just got my live rocks in today and they don't look familiar to the hitchhikers guides.

20240910_133847.jpg
Those are both kinds of polychaetes (bristleworms) - most polychaetes that we get in the hobby are harmless/beneficial (minus occasional pokes from the bristles), but a few may be harmful.

As a general rule, unless it has 5 tentacles on its head; a very distinct, rounded head with no bristles on it (and typically no visible tentacles); or a caruncle on the head (with or without visible, feathery gills by the bristles); the worm is good.


For examples of not-so-good worms:

-Five tentacles (I'm sure someone has clearer pics somewhere for these):
-Rounded, bristle-free head:
-Caruncle:
Yeah, I would guess that's a fire worm - it seems to have a caruncle, so that would be a fireworm; but I can't tell for sure from the pic. To verify if it has one, see the link below:
 
Common bristleworm and reef safe although not welcomed in my tanks are considered clean up crew and eats uneaten food and detritus
Those are both kinds of polychaetes (bristleworms) - most polychaetes that we get in the hobby are harmless/beneficial (minus occasional pokes from the bristles), but a few may be harmful.

As a general rule, unless it has 5 tentacles on its head; a very distinct, rounded head with no bristles on it (and typically no visible tentacles); or a caruncle on the head (with or without visible, feathery gills by the bristles); the worm is good.


For examples of not-so-good worms:

-Five tentacles (I'm sure someone has clearer pics somewhere for these):
-Rounded, bristle-free head:
-Caruncle:

Thank you and for the explanation on how to tell which one is good and bad.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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