Looks like a long tentacle plate coral. Might have some issues so close to that SPS back there - they are a fairly aggressive coral and can puff themselves up to increase their size.
Yes 10.00 she was like well that just came in and I honestly don't know what it is so 10.00 it's yours normally I do extensive research before buying a coral but I figured at that price I was pulling the trigger
It's a wholesale place in Hudson FL everything is dirt cheap I got a pair of mandarins male and female for 5.00 each she's been there 20 years she sells mostly online from what she says I got a clean up crew from her with 30 hermits blue and red leg 35 snails a peppermint shrimp and two emerald crabs for 25.00