Sarlacc type thing with fluorescent green colour limbs

im talking about the sarlacc from the original version of the film. Not the re-majiggered re release with the external mouth parts.

Anyway..... ive been meaning to ask this question sooner. But now i appear to have 2 of them in my tank. I thought it more urgent to ask "what the hell are they?" now.

ok. heres he description:

There is a central part of the creature hidden with in a hole but it seems to cover its self up with what looks like regurgitated waste. So cant see it clearly enough to describe that part well. The main part i can see is the 6 (ish) really long (approx 4-6 inch) limbs it has. The limbs are an almost fluorescent day glow green and are very thin. About as thick as apiece of cotton. Each limb seems to have a mind of its own. Always moving about as if its searching for food or something else (like my brain to enter so it can control my body :-[ like off of invasion of the body snatchers (ok really must stop watching scifi films)
Anyway....they are big and green and scary. I cant take pics of them as the legs are too thin for my camera to focus on.
But i did draw a picture that may help


Any help?

 

spaghetti worm?