Some animals that use tentacles to get their food are Jellyfish, Sea Anemone, Coral Reefs, and Hydrozoans.
what animals use tentacles to get their food?
The entire Cnidaria (the 'c' is silent) which contains over 10,000 species is your answer.
They are aquatic creatures that use "cnidocytes" - special cells on their tentacles to capture and consume prey.
Also, Cephalopods.