Need to know what is in my tank?

[sclones]

I have alot of tubes in the sand and it looks like little strings are coming out of them move around. Does any know what they are and if they are safe for my tank. I only have fish in it.

 

[andiruleu]

feather dusters?

 

[sclones]

I don't think that they are feather dusters. There is alot of them maybe 50 or more in the sand. They have been there about 6 months now.

 

[hong_asc]

sound like medusa worm

 

[bromion]

They are a type of worm that has feeding tentacles. As far as I know, they are common and positive to have.

 

[NicoleC]

There are many worms that meet that description but without photos and more info...

In general, these are totally harmless and an excellent part of your cleanup crew.