Something Scary

[s7knight]

I got something unusual in my tank that I haven't been able to figure out. It hangs upside down under some LR, light does not touch it. All you can see of it are white luminescent tips on the end of its tentacles. Otherwise the creature is clear. I really only notice it when I first turn the lights on in the morning. Last night, with the lights off I flashed a flashlight in there under the rock. It had a base like some sort of anemone or coral, that was slightly less translucent than its tentacles. It had almost a brown tint to the base. Of course I could see the glowing white tips at the end of its tentacles though. I have no idea what it could be, I've dubbed it the Creature from the Abyss though. I'll have to try and get a picture soon.

[jamessp01]

not sure, maybe a cup coral or apistasia?

[s7knight]

Here is a link http://www.advancedaquarist.com/issu...002/invert.htm .

It looks like the Pseudocorynactis at the bottom. I will still try to post pics at some point though.

"This Pseudocorynactis from Fiji is beautiful but not safe with fishes and adjacent invertebrates. It is a voracious eater that has powerful nematocysts in the ball-like tentacle tips."

[s7knight]

After more searching, it is definitely a corralimorph. Its either a pseudocorynactis or a type of corynactis. It does have the club tips like these types of corralimorphs have. Hopefully it is the corynactis type, as the pseudos get quite large and eat fish. It is clear with a light brown tint to the column, so not the jewel or strawberry kinds of corynactis.

[JustDavidP]

My post in the other thread... cut and pasted here for you

Dave

Corallimorpharian... A Pseudocorynactis caribbeorum, or similar genus. The big 'ol Pacific Indo-Pacific varieties cab be a problem, but the Atlantic/Caribbean ones stay tiny. No need to fear them, unless you have them in a fry tank. They do trap and consume foods from the size of whole mysid to newly hatched brine shrimp.

They are often found in the openings of LR in captive systems, such as caves and overhangs, where flow brings them dinner. They can and will "jump ship" and float around to a new neighborhood if things don't work out for them where they are attached. Much like your mushrooms would.

Here's a good read: http://www.advancedaquarist.com/issu...002/invert.htm

Since they are a coralimorph of sorts, they don't have a skeletal cup or base. I carve them off of my rocks and give them to peeps who ask for them. They come up with an exacto knife JUST like mushrooms do. They are non photosynthetic, and thrive in systems that feed smaller fare. I had them in my seahorse tank by the dozens, but the numbers have dropped drastically since converting that tank in to a FO with percs and such. They probably bloomed with the BBS that I was feeding.

Dave

[s7knight]

I just hope its not the pseudo kind. I think only time will tell. If the column gets bigger than an inch and a half it dies.

[JustDavidP]

LOL.. k.. sounds like a safe plan.