Got a hitchhiker or unknown critter?? Check here for an ID

reefrider777 · Mar 26, 2016

Monti eating nudi or Zoa eating nudi or something else?

Lionfish Lair · Mar 26, 2016

Zoas.

ValG · Mar 28, 2016

Can someone please ID this? Good/bad? Looks like it may be a nudibranch? May be just a slug?

mr11 · Mar 29, 2016

To the right of the zoa plug. Any chance this is a bobbit worm? I saw it looking in my tank tonight. Tried to pull it out and just got the top. Bobbit worm and aptasia are my top two suspects right now.

Lionfish Lair · Mar 29, 2016

Aiptasia. Definitely not a Bobbit.

gunit · Apr 1, 2016

Any idea what this is on the underside of my new Ricordia Yuma frag? They're flat and whitish...just substrate? Don't look to be a flat worm, but I'm not expert.

J Fox · Apr 1, 2016

Sitting right in this frag plug I noticed this thing. Just super glued a hole shut that had a vermitid snail ( hope I got it) is this another ?

jjbunn · Apr 2, 2016

Saw this on the front glass this morning ... about 1" long and moving quite quickly. Is it a flatworm? Apologies for crappy video, but camera had a hard time focussing on it.

Lionfish Lair · Apr 2, 2016

Is this the only angle you were able to view it from? Not the other side too? If you were able to see the other side, did it appear to be perfectly flat? Did it have antennae?
Did it have a white center line and like a bunch of little lines coming out from that line (internal)? That's a hard one for me to explain,

jjbunn · Apr 3, 2016

It's doing a tour of the tank walls, but I've only be able to see it well from its underside. No antennae that I could see. My impression is that it is flat on both sides, but I'll see if I can get a decent photo.

Lionfish Lair · Apr 3, 2016

I believe it to be a flatworm, but I wouldn't want to say for sure unless I could see just a tad more detail.

jjbunn · Apr 3, 2016

Lionfish Lair said:
I believe it to be a flatworm, but I wouldn't want to say for sure unless I could see just a tad more detail.

Here's a couple of better shots of this thing:

Lionfish Lair · Apr 3, 2016

That's a planaria.

frogman_reefer · Apr 3, 2016

Ideas? It's from a friends post.

frogman_reefer · Apr 3, 2016

http://www.theshrimpfarm.com/posts/invasive-species-in-the-news/

Is this it?

cloak · Apr 3, 2016

It looks more like a Nudibranch of some sort to me, as opposed to that shrimp outlined in the link above.

Freakyyfort · Apr 3, 2016

Id these? Sorry bad quailty. Cell pic.

Lionfish Lair · Apr 3, 2016

cloak said:
It looks more like a Nudibranch of some sort to me, as opposed to that shrimp outlined in the link above.

Agreed.

The is the same appearance as the "montipora eating nudibranch". I'm not sure how many species have this similar look and what those diets are, but it's safe to say they need to be removed when seen.