Pix & ID: Critters that come in your rocks: the good and the bad.

[worm5406]

Worm, I have no idea what your worm is LOL.

LOL.. Yeah it was the size of a human hair... moving all over because of the dip... I could not get a good pic and by the time I got the trumpet out to get the worm, it was a knot. No good picture at all.

Thanks though!

 

[DexterOne]

Just appeared today on the aquarium glass, never saw this one before. The tank is 3 and a half years old...

Look on the glass near the Magfloat.

 

[SushiGirl]

Looks like an aiptasia.

 

[lokii_37]

What are these? The stalk part is hard but the tips blow around. They don't look like feather dusters to me. They are small the head is only about 2-3mm

 

[cloak]

Hydroids.

Check this out.

http://www.lionfishlair.com/hitchhiker/hitchhiker.shtml

 

[Paul B]

These guys couldn't afford the other two arms.

 

[Paul B]

I got hundreds of these tiny carnivorous snails using clam meat as bait

 

[SushiGirl]

Are those olive snails, Paul?

You need to tell those mini brittles that they have the right to bear arms :lmao:.

When my mom was staying with me after my last surgery, she noticed one of my white mcro brittles that only had 3 legs. Boy, I've never seen them get such long arms when I had them before, but I have a lot in the 20L that are trying really hard to get as long of arms as the black & white mini brittles in the 55!

 

[Paul B]

No, I think they are marginal snails but I am not a snail expert, I got millions of them. Brittle stars also, one leg, two legs, three legs etc.

 

[mchammer]

Could some one ID this thing. I have several on my rocks and my candy cane coral. this one is on my snail. Are they good or bad.

 

[alexander_ktn]

Could some one ID this thing. I have several on my rocks and my candy cane coral. this one is on my snail. Are they good or bad.
View attachment 228510

It's a vermetid snail - a filter feeder that catches stuff with a slime "net".
They don't hurt anything but sometimes the nets annoy corals...

 

[mchammer]

Thank you for the fast reply alexander. That would explain the white cotton looking stuff on my candy cane coral.

 

[AGreyCrane]

Just wanted to confirm... bristleworm?

Thanks!

 

[alexander_ktn]

Yes, the normal kind of bristle worm.

 

[NicL]

Hello all. Im pretty new to the hobby and the forum. Ive been through almost the entire thread and others as well trying to id a worm i have in my recently cycled tank. He is very very small and impossible to photo. I can only see him with a magnifying glass and most interestingly is he is black with blue bands ( or blue with black bands) and is very shy. I have never seen more than a 1/4 inch at the most and he seems to shrink into himself and he seems to be eating stuff from off the rock he's living in. I know a pic would help but. Any help would be appreciated. Thanks

 

[tatuaje09]

Good or bad?

 

[SushiGirl]

NiCL, the action sounds like a peanut worm.
Tatuaje, could be bryopsis, but I have no experience with it so maybe someone who does will chime in.

 

[NicL]

From everything Ive read thats what i thought too but couldn't find anything about one that was blk and blue. Thanks

 

[tatuaje09]

NiCL, the action sounds like a peanut worm.
Tatuaje, could be bryopsis, but I have no experience with it so maybe someone who does will chime in.

That's what I was afraid of. Oh well, its just the one small patch.

 

[ReeferKimberly]

Oh well, its just the one small patch.

FAMOUS LAST WORDS OF MANY.

Get rid of it now. Trust me. This is why...and I had less than you....

Take the rock it is on out of the tank and kill the algae with peroxide and get every single strand. Mine started with 1 strand on a frag I thought was 'pretty'. Do not try to remove it while it is in the tank or it will spread. See above^. If it ever does get as bad as mine did or even worse, do not fret. I have been bryopsis free for a long time now. There are a few solutions.