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

[Sugar Magnolia]

Harmless bristleworm.

 

[Boboli]

Polyclad flatworm.
Bad!

 

[jasonhobbs86]

White Fuzzy, Squishy like things - HELP! They're taking over

White Fuzzy, Squishy like things - HELP! They're taking over

First off, i've searched as much as possible without going completely insane.

A bit of background, Bought some live rock a month ago, put it in the tank. Noticed a couple lil white fuzzy-ish things, didnt think too much about it, looked pretty harmless, wrote them off as filter-feeders.

Well Now I'm noticing these things on the back glass, on my power heads, and on that one piece of rock that they originally came on. Mind you in one month it went from two on that rock to like 50 now.

I take it there's nothing good about something that reproduces in the tank like that. I'm pretty sure that hydroids are ruled out as they are usually very very tiny.

Any Help is greatly appreciated.

 

[bigmikey80]

identity unknown...

identity unknown...

can anyone identify this thing? magically appeared when the lights came on...does not move under its own power...no discernible eyes or mouth.....size is guageable by the turbo snail also in the pic...I tossed it in the sump.

 

[SushiGirl]

Jason, harmless pineapple sponges. Lots of pics of those in this thread LOL.
bigmikey, no idea. Usually if you take something out, you should take good, clear pics of it isolated in a dish or something for easier ID.

 

[Pufferfood]

My thanks for the previous ID .

This morning I found something that had crawled up the glass during the night. No idea what it is, maybe a pest anemone? It's very small so it was hard to get a good picture. I'll keep trying.

In case it helps, the live rock is from Bali, Indonesia.

 

[Sugar Magnolia]

Yes, pest anemone. You'll want to remove it asap.

 

[Pufferfood]

Yes, pest anemone. You'll want to remove it asap.

Thanks. It's a good thing they're very slow, it was more or less still in the same spot.

 

[rynomatt]

What is growing on this rock

What is growing on this rock

It looks like coral but I cannot find it in any book?

View attachment 215734

View attachment 215736

View attachment 215737

Thanks Rynomatt

 

[kgis]

Can you help me figure out what this is? It's in the middle in the back of the rock and my pistol shrimp uncovered it today.

 

[SushiGirl]

ryno, it looks like some kind of leather. Maybe a finger leather.
kgis, not sure what you're asking about. Can you get a closer pic with whatever it is in the center?

 

[kgis]

Can you help me figure out what this is? It looks like my pistol shrimp uncovered it today. It is maybe 1/4 in wide.

 

[kgis]

Can you help me figure out what this is? It looks like my pistol shrimp uncovered it today. It is maybe 1/4 in wide.]

Sorry for the double post... Learning to do this from iPad.

 

[SushiGirl]

Kinda looks like a paly.

 

[kgis]

Kinda looks like a paly.

Ok thanks. Is that good or bad?iassume good but want to ask to make sure.

 

[Pufferfood]

This is another pest anemone I take it? It's a whopping 2mm long.

 

[SushiGirl]

Kgis, depends on whether you like palys or not. I'd look at it as a fre coral.
Pufferfood, yes it is.

 

[Pufferfood]

Back again

Found the following on the glass today

It's spherical with 4 spikes, set roughly evenly across it forming triangles. There are no discernible openings, though there is a darker line on one side. Back on the glass it seemed to have 3 very thin "long" tentacles, maybe more.

it's roughly 2mm in diameter, though it could be slightly below that 1.8mm mayhaps. It appears to be pretty hard.

 

[Pufferfood]

Seems I can no longer edit my post. I thought I would add this, photo of one of the live rock pieces that is curing. There seem to be quite a few of them. Only marked out the ones I saw quickly.

 

[Pete H.]

Any Idea what this might be? I found is crawling along my frag plug last night.

Thanks!