Kind of your go to tranquil Dino for undersea dinos such as the Mosa or Pleso. Tame a lot for the pack bonus which increases the Torpor given. Don't use these for fighting because of rly low health.

You can use the eel for underwater knock-out tames. Their shocks raise torpor so you dont have to use these fuckoff tranq arrows

Use a frog or sarco to lure them into a small underwater resource cave and feed from air pocket . Only do one at a time though, as the others will kill first one tamed

They look cool I guess. Nice sit around design dino