If you sea glowing in the sea do not go to it

Me goes to glowing

Fieind do not go

Me goes anyway

Me dies a slow and shocking death

I rode my 138 Sarco into the sea collecting oil at sea, finished an oil rock, turned around and saw 5 of these bastards ganging up on him while he was sleeping . We both died, take these on by range with crossbows.

F in the chat for my lv 138 “Big Boy Gator”

Do these things look harmless to you? If you said yes YOU COULD NEVER BE SO WRONG

Killed my beloved sarco Crocodile Dan whil i was getting oil, very fast silent untill they have yiu trapped

says it’s early game? I heavily disagree with that and they might kill a giga given the right circumstances

Ubfoot so can see..

I get water and fill my waterskin next 3 surround me and kill me and all my assisting Dinos :(

BASILOSAURS ARE IMMUNE TO THESE MF STING ATKS AND DISMOUNTS,UP SO THE NOOBS CAN SEE

Lure them to near the surface and kill them from land.

Cnidaria have a very large aggro range. They can't move very fast but you'd be surprised how've often they'll appear right behind you while you're in your inventory. Without a basilo, I kill them with my crossbow. NEVER look at a group of jellies and think, "Eh, they're far away enough. I can get into my inventory"

Most annoying aquatic creature.

These things dismounted me off of my 261 mosasaur and then killed me. I tried to go back and whistle the moss but it was stunned and couldn't move so it died instead.

"won't attack unless approached" is a LIE. These things are the ones who approach ME, and then they swarm me. If theres any body of water with them I have to IMMEDIATELY get out of there.

my level 53 (Nilah) and level 61 (Spiny) spinos were actually able to take these guys out with no problem. they saved my mesopithicus (Maverick).

I will kill them from distance with a crossbow,to kill these you have to aim up on these and aslo these guys has so much less health they will die before they even approach you,but if u didn't see these then that is tha last moment for u or your tame. I hope this is usefull

Bary? Avoid.

Megaloshark? Avoid.

Spino? Ehh, he can nip at them but I wouldn't risk my buddy.

Basil? OH, IT'S GO TIME BABY.

HOW TO COUNTER THESE LITTLE SH*TS! First off the archelon which is that huge turtle, the archelon is very strong and immune to the Cnidaria attacks, and is great for farming bio toxin. Second the baryonyx, specifically the spin attack, these shred the cnidarias, the only downside of this is if they shock the baryonyx you get stunned and fall off it, so just hope he’s strong enough to kill them on his own. THIRD, THERE IS NO THIRD 😭😭

can NOT be killed by therizno.

On ARK: Mobile, these guys can spawn at beaches, or at the ocean floor. On ARK: Ultimate Mobile Edition, these guys can spawn literally at any depth in the ocean.

For the new players if you see this thing in the water DONT APPROACH IT IF YOU GO NEAR IT IT WILL KILL YOU AND DONT BRING YOUR PETS NEAR THEM I LOST MY ARMY OF DILOS 2 CARBO 2 TRIKE 3 RAPTOR AND MY SACRO FROM THESE THING JUST DONT GO NEAR IT IT SWIM VERY FAST

BROOO I WAS USING AGRY TO KILL THESE AND ONE WENT IN THE AIR AND HIT MY AGRY