ID please

[steamboatwv]

guess i got more than the spiders on my last purchase, can someone tell me what this is, it moves like a slug but looks nothing like anything i can find, and do i need to remove it due to my softies....

[dobejazz]

wow you get some wierd hitchhikers I've never seen anything like that

[steamboatwv]

well i just caught it and apparently it can swim fairly fast lol. i have it separated from the main tank now but if its harmless then i will put it back. my closest guess is those jellies that cling under leathers that shoot out the little fishing lines to eat but i want to be sure that its not some coral eating slug or anything, i know i got a few of those jellies when i got my yellow leather but have never seen more than there lines and didnt think they would crawl around on the glass, usually those stay hidden from the fish.

[ChrisPrusha]

I've got nothing. Is it always shaped like a ball?

[steamboatwv]

its flat and as it moves it stretches out different shapes but for the most part unless its swimming yes. when it swims it does so like a flatworm like the outer rim is wings but nothing about it matches any of the flatworm species i have looked up. there is no mouth area or anything just the thick white vein looking thing in the middle which is what makes me think that its a ctenophore "i think thats how you spell it. but not for positive thats what it is and just wanted a second oppinion or 3 lol. hate to flush something that is harmless and looks cool when swimming thru the tank...

[LeslieH]

Unless it sends out 2 feeding tentacles and proves it's a benthic ctenophore I would go with flatworm. The plain white or translucent ones aren't photographed as often as the more colorful polyclads.

[steamboatwv]

well i know i have the ctenophores in the tank but like i said i have never seen anymore than there tentacles so i will go with worm and not put it back in.. ty

[Loverotties]

That's a new one on me?

[Fly Guy]

looks like a flatworm