One is manageable if you have a mount as you can probably kill it, anything more than one is a sign to run, don’t try and save your mount, better to save your stuff than to lose both your mount and your stuff

The best way to get rid of these is to shoot them with a crossbow

keep a crossbow on you because if it grabs your dino you can kill it

One thing to know just stay away from them cause if they aggro on you and your in deep water your dead

Is u see these dumba$$es just use a spear or a pike and stab them to death then u got bio🪼

GOD these things are ANNOYING!!

If your near land lure them to it then get a spear or pike or sword to kill it.

We all know that it is in shallow water and will screw all ur animals. Calm down. Just pure one to shallow water and if u do it long enough is then they will not be aggressive anymore. Unless u get in deep waters. They usually have 180 to 240 health and drop 13-14 bio toxin

Use Basilosaurus to kill these. Never use anything else, learned that the hard way.

These stupid jellies killed my raptor on mobile…

1 up=1 respect for alpha

The tip section is full of peoples dead dino story's while my a$$ is trying to get tips on killing them

This thing killed my dodo I just tamed

Rip Saber the sarco

I hate these things with a passion

Just jump into the water near shore then wait for them to get really close then quickly get back on shore and they will be near the shore, then use a spear or range to take them out, but keep a distance because they still can attack you, and there you go, easy bio toxin for day

As long as you on the shore and NOT underwater, they wont come for you

This Jellyfish just killed my level 15 Dilo I swear I'll have revenge

All you need to do is swim above it and far enough away we’re you can’t get stung. Then just pull out your sword and swing while swimming backwards. They hardly have any health and you will take them out in a few swings with a pretty solid sword. Just make sure you don’t get close or you will die!

if you see this pest under water, try to move it to swallow water and you kill it as they stand still. if you see it on open sea, go to your raft and move the cnidaria close to your raft and you kill it. but if you already on deeper water, go near a wild water creature and us it as cover. but if there is no wild creatures, try find high rock or try slip your body on rock and you kill the cnidarians, but if there nothing and just you and cnidarians. well nothing to do unless u bring your megalodon or other water creatures that you tame 😁

Here’s a massive tip that I’ve learned that I find helpful and you might or might not. I’ve found out that setting my tames on creatures like paras next to the sea is the worst idea, they will run into the sea and your tames will follow. I have lost tons of raptors, paras, Ankys and even Rex’s to these stupid jelly fish and there’s nothing I can do but watch. I play on mobile evolved so my experience might be different to yours.

These Guy are awful, I had four Raptors and they killed all of them as I was going through a river.

Here's a tip in killing a cnidaria without having to kill it with any weapons or dinos:

•Get in the water close to them(not so close unless you want to die)

•let them follow you

•get out of the water

•They'll be now almost out of the water

•Get back in side and let them turn

•They die because of their turning issues

That's use full to get them Biotoxin (Note that I don't know if this works on any other devices,only I know it works on mobile)