brown stringy tentacles

Apologies for the poor resolution. I added this hammer to my tank last week and I noticed these long, very thin tentacles coming from the base of the skeleton. This is my first Euphyllia. I initially though they were the famed ‘sweeper tentacles’, but not I’m starting to wonder if they are a...

Hello :) TIA reefers!!! Friend or Foe?!? I noticed a 'mound' forming in sandbed. Closer I looked, I seen super thin strings which resemble tentacles. At first, I thought it was the tentacles from my cleaner shrimp exoskeleton. After a few months, mound is a lil taller, they're brownish and have...