Hundreds of little coral horns growing all over my tank

amclaussen · Dec 30, 2011

Hello all, hopefully someone can give me an answer of what these little horn looking things are growing all over my tank. There are literally hundreds of them everywhere on my rocks and some even on my larger snails.... weird.

The base at where they are connected are kind of spirally with one long horn shooting out. One of my smaller coral frags has probably 12 on it alone so I am assuming that these are some sort of coral but I don't know for sure.

Are these good or bad to have everywhere?

Thanks for the help.

Live Rock · Dec 30, 2011

They look like some kind of harmless worm. I have these too.

beeguiles · Dec 30, 2011

I also have them everywhere. Just some kind of worm. Not harmful

ErinCahir · Dec 30, 2011

It's a vermatid snail. If they're bothering you, you can super glue the tube shut.

sen5241b · Dec 30, 2011

They are Vermetid snails. They are sessile and harmless. Take a turkey baster and blast your rock and stir up as much detritus and particles as you can. The Vermetids will release their little fishing line and pull in the crud and eat it. Its kind of interesting to watch.

amclaussen · Dec 30, 2011

Are they stationary or will they move around? Will they stay in the same spot forever? They just look creepy and there are SOOOOOO many of them!

ErinCahir · Dec 30, 2011

They are stationary. Like I said... feel free to super glue them. The tiny ones I had in my tank I just squished with my nails. They're harmless but slightly annoying.

Eissie · Dec 30, 2011

You should watch your hands while in the tank. The tubes are pretty tough, and razor sharp.

amclaussen · Dec 30, 2011

Thanks for ll of the information! This was a big help!

beeguiles · Dec 30, 2011

Yea that's what mine do too with their strings. I figured they were capturing stuff to eat. I haven't watched them long enough to see them pull it in. Pretty cool tho. I like them, it adds more life to the tank.

Hundreds of little coral horns growing all over my tank

amclaussen

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