Worm like thing from LR "elastic worm"

[banditpowdercoat]

Ok, tonight I get home from work, tank lights are off as usual. I turn the room lights on and say goodnight to my critters. Well, I notice this worm like thing coming out from the LR. extending like a tounge. I think it was scooping Amphipods? I have a ton of amphipods that come out at night. By the time I got the camers, it had receeded back into the LR. Was tan color, like elastic bands. looked about as stretchy too. Thicker at rock end(base), gradually tapering throughout its length.
I wish I could have goten pictures. Anyone have any idea's?