Honestly on lost Island these aren’t too bad. My recommendation if you want bio toxin would be to leave everything you have at your base and bring a crossbow and arrows, use a raft to get to the middle of deep water, make sure you have a pike or something to harvest them when you kill them. You can use scuba gear if you have lots of extra resources but prepare to lose whatever you bring and have a spare raft at home so you can retrieve your body.

My Fricking giga died bc it got stuck in water with these

Do NOT underestimate…

I was playing on Ark Mobile. Me and my barry Onyx (not a typo) we’re coming home to my little bay after missing a supply drop when I realized I was running low on fish for my fish eaters. Saw that there was a group of four of these guys and just decided to go a little further and stay in the shallows to avoid them. Of course, they agro-ed. The water was shallow enough that other things wouldn’t have been able to follow, but not for these guys. I got knocked off my Onyx and she ran after them. Even at full health it was a one hit K.O. Two rays I hadn’t yet seen finished her off. Didn’t get the implant so couldn’t revive. You were an amazing mount, Onyx, and I owe my life to you several times over.

The moral: DON’T PLAY AROUND WITH THE JELLIES!!! THEY WILL MESS YOU UP BEFORE YOU CAN SAY “Oops”! JUST DON’T!

Honestly, they aren't a problem. Get a mount like a megalodon, or go by yourself, and shoot with a crossbow. Also, pikes seem to work. Just keep in mind if you get stunned, you will be dead.

It's really easy to kill these guys all you have to do is make them follow you to the shore and then you shoot them and you have bio toxin

three of these and 1 meg killed my baryonyx be careful when hunting megs on oceans scout your surroundings killing these cnidaria before you hunt

These little b@#ches killed my pelagornis and i was SO MAD SO MAD THAT KILLED ALL OF THEM I KILLED A TOTAL OF 34 THIS IS FOR MY PELAGORNIS AND A TAMED ANOTHER ONE IT WAS A HIGH LVL AND A GOT THE SADDLE FROM THE DEAD PELA AND EQUIPED IT TO THE NEW PELA hes name is white

Tusos are also completely immune to stuns like jellyfish and eels

These things weak as heck on the island I have a raft and go and get next to them and just spear them or pike them it's easy

Beware going in the cave with mosas, I was fighting 2 alpha megalodons as well as about 10 other sharks and dunkleosteus and then 2 of these came by and it nearly died from them

Like two weeks ago my friend was on a frog and got it killed by these bastard. Now we killed them for fun

If you hate Cnidaria as much as I do, get a raft and a blood stalker. Using the blood stalker to drag them out of the water is an instant kill, their webs will only reach to a certain depth however. So, either lure them to the top of the water or use a ranged weapon for any left over.

I finally tried attacking some of these with an expendable spino, and I figured out that you just need to attack the jellyfish before they attack you. If you level the damage to about 250%, you can kill the average jelly in three hits, and they harvest more biotoxin than other creatures.

(My giga harvests 12 per jelly, baryonyx is 16 per jelly, and the spino is 18 per jelly). I promise you guys that it’s real. It’s only a problem if you let your tame get too close and then get stun locked by the electric attack of the cnidaria. Keep your distance and murder these suckers for the best narcs in the game! Good luck

OMG!! Some of these guys came up to my angler fish and started attacking it out of nowhere!! Then my Sarco Swam in and started attacking them!! I thought they would both be dead BUT THEY SURVIVED!!!!!

Just don’t bring your megalodons or any tamed near these. A group of them attacked me while on my 120 megalodon and killed it within seconds. Just stay away from them

Kill these guys whatever chance you get with spears it’s pretty easy just don’t get stung too many times.

Recourse tip: these things drop bio toxin don’t get rid of it it has a good use of your too low a level to make narcotic (DONT EAT EAT IT it’s for creatures.)

When taking a creature if you want to bring up its torpidity to keep it asleep just feed it one of these toxins I collect them all the time. Just make sure you don’t feed the creature the toxin too early it could hurt it if you give it too much too soon. Feed it some once the torpidity is down at least halfway then feed it to the creature I always have these thing with me.

kill this fu***ng annoying jelly fish with bow or bait thia f**king annoying jelly fish to ground and use a pike(cause i hate normal spear,because spear can broke in 1 attack)

You can kill them if you go to the Shore and if they follow you just hit them with your axe or or something so you can you can you kill them I did it once cuz a drop spawned bright by 2 and I killed them afterwards when I got my stuff back and the drop

Rip fang and Mary who tried to follow me

I saw it happen as my lystrosaur swim down the river when she was attacked. I was shocked when she died. Then my moschops also swam and she died too