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

[Ambition]

 

[GroktheCube]

It looks very much like the ones I had, but upside down. I wonder how the jellys get off of there that way? Mine would slowly rise up the tentacles using a pumping motion until they were free.

Perhaps they just detached and allowed themselves to drift free. I'll keep an eye on mine to see what it does. I'm going to turn off the PH in that tank, and just let the air stones take care of circulation for the time being.

 

[hogfanreefer]

White worm?

White worm?

Last night night I was feeding my QT and noticed what I thought was a piece of white thread on the bottom of my tank....but it was moving. It took several minutes to get across the width of my 20gal QT. Can't find it today. Sorry for the terrible picture. Its the fine white line just in front of the media bag (the second one is the reflection off the tank bottom)

Camera with a macro lens is on my wish list.

 

[LeslieH]

Kyle - you've got a scaleworm, polychaete family Polynoidae. They're all micro-predators on smaller worms & things. If you don't want it I do!

 

[SushiGirl]

Kyle, some kind of nudibranch?
Sorry, hogfan, no way to tell. There are way too many possibilities.
Grok, it should be fine with the powerheads on, mine never cared.

 

[Ptyochromis]

So im about a week and a half into my cycle, I already have had to get rid of 2 of my live rocks do to a bad outbreak of caulerpa algae. here are some things that i have seen pop up or grow (in the case of the two things that look like a coral to me) any help on what they are and whether they are desirable or a problem would be great. also anything else that catches your eye. the ID posts are so vast and many that searching them is just about a full time job.

thanks everyone!

(one more pic to follow)

Pics 2 & 3 are the same coral that is in my profile pic.

 

[Ptyochromis]

strange, from the top it almost looks like a chiton. Where did you find it? What does it do when you poke it?

 

[OrQidz]

wow that scaleworm looks like a garden caterpillar/grub type thing. Weird what turns up in a reef tank!

 

[priscacara]

Hi, I have this very nice purple critter that I have had on the rock for over 6 months. It is spreading but doesn't seem to be causing any problems so I have just let it grow. It is growing around the xenia now, it started off about 1 inch or so long and now is a nice sized mat about 6 inchesx 3 1/2.

I think it is a type of colonial hydroid but all the ones I have seen have branches.

Sorry for the pic size if it is too big.

 

[SushiGirl]

Last post didn't show again, & not realizing it I deleted my email so can't even look at the pic. *sigh*

Hopefully they'll fix it to show up.

 

[SushiGirl]

Silly me, it was in my email trash LOL.

priscacara, colonial tunicates. Harmless. Nice score!

 

[volcom5655]

found this little slug thing creeping around. anyone got I.D. for this character

 

[nanoreef heaven]

Stomatella snail.

*Sent from my little corner of the reef. Nano nano!*

 

[priscacara]

Tx SushiGirl, much appreciated!

 

[Ambition]

Kyle - you've got a scaleworm, polychaete family Polynoidae. They're all micro-predators on smaller worms & things. If you don't want it I do!

Posted it to help a friend locally.

strange, from the top it almost looks like a chiton. Where did you find it? What does it do when you poke it?

Not sure what it does when poked, not in my tank. My friend did say it looked like a caterpillar when he asked about it.

wow that scaleworm looks like a garden caterpillar/grub type thing. Weird what turns up in a reef tank!

Exactly what he thought when asking what it was.

Thanks guys!

 

[reefgoddess808]

Hi There. Does anyone know what this is. It was advertised as "Purple and green mushrooms on rock" from LADD. I noticed last week that the rock wasn't a rock.

Slightly more open:

Side view:



Its an Oyster! Very neat!

There's definitely tissue inside and it reacts to light (more tightly closed under bright light).

 

[HeadleesSon]

Hi everyone, What are the little white dots that get on glass and rocks? The recent picture by reefgodess88 has the same thing i am talking about, I think. They look like white sesame seeds and do not move if stabbed. Are they eggs? If so any idea what lays them?

They do not have a forked tail and seem to sit completely still. Almost identical to a sesame seed. They are spreading in all 3 of my systems, and apear with in 6 inch areas. Here and there in patches.

Any help would make me smile!

 

[alexander_ktn]

Hi everyone, What are the little white dots that get on glass and rocks? The recent picture by reefgodess88 has the same thing i am talking about, I think. They look like white sesame seeds and do not move if stabbed. Are they eggs? If so any idea what lays them?

They do not have a forked tail and seem to sit completely still. Almost identical to a sesame seed. They are spreading in all 3 of my systems, and apear with in 6 inch areas. Here and there in patches.

Any help would make me smile!

Might be nerite snail egg casings.

 

[HeadleesSon]

thanks. I have nerrites in every system, so that would make sense.

 

[SushiGirl]

I would agree with nerite snail eggs since you have them. Could also be spirorbid featherdusters if they tiny spirals. Google both & see which it seems to be.