Use a snow owl to deflate the gasbags and keep them from flying away and you heal them so you wont kill them with tranqs.

Use 6 or more stone dino gates like you would on argy (after update) to trap- with 2 doors on the end, then pump full of tranq darts.
^ this so others can see

What you have to do to tame this fat caterpillar is freeze it with a snow owl and keep freezing it until its knocked out

Fun fact:
They are believed to be part of the Tardigrada phylum, a group of extremophile microgranisims that can survive literally any environment, from extreme cold to extreme radiation, these guys are the hardiest of animals.

They have a damage resistance when inflated, so use a snow owl to freeze and deflate. After latest update, they can no longer be picked up or hit with bola. Heavily suggested to clear area of hostiles before KO. If timed right, you can keep gasbag in same area while tranqing by alternating freezing and shooting.

From my experience u cannot trap these no more when I was trying to tame mine it didnt go in the trap it just turned around when. It was near the dino gates and walked away.

If inflated it will take 400 % more darts/bullets hits ect. To knock it out / kill it so dododex is not wrong it's just because the gas bag is inflated. Also bring cryppded anky or magmasaur with pick or minding drill to collect a huge amount of metal! While rideing of course because it has a ton of weight.

Just trap them with behemoths and use snow owl to deflate, shoot a tranq, mount the snow owl again and repeat until tamed.
P.d.: And the end, he will start trying to get away and then u can shoot him like 3 times before he inflates again

Pick it up with a wyvern and get your friend to tranq it. Just be careful because they can take fall damage.

When you are carrying a gasbag with a quetzal it takes wayyyyy more tranq darts then dodo dex says. It took around 110 darts for a lol 145. Was worth it but good thing i brough extra gear.

Use a snow owl
It does more torpor

I had the server 1st Gasbag tame on legacy 915, lvl 145M. You can bola it, but it can still try and float away from you but when it lands it's still trapped. Headshots and lots of tranq arrows. Took about 130 to knock out. I kited mine into the city and under a bridge. Torpor drops super slow, used mejos and took about 11hrs. Its base weight was 4,400. It tamed out at lvl 150. Lvl oxygen so you can float longer. THEY DO TAKE FALL DAMAGE. To operate once tamed Rclick to inhale. Lclick to peck attack. C for a really fun knock back that works on wild dinos, knocked out one and players even on pve. A great trolling mechanic. Be gentle with flying it when you first get it until you learn how it handles. Inhale then space gives you a nice jump but do not hold W key. It will take you super high... then no air and then a nasty belly flop and you may kill your tame. Just give little direction corrections with the keys and you'd get a feel for it. I love this thing to death. Cameron-Forsaken 915

Knock it out from the head like a doedic his bottom body is armoured

1. You do more torpor damage to it when it's deflated.

2.Best way to tame them is to have a friend on a frost owl freez them in play that dose two things. Keeps them from moving and also auto deflates them. Best way so far I have seen.

Superior augmented kibble to tame these big bags.

Use a Kaprosuchus to hold the Sumo wrestlers down, and punch it in the face till it goes to sleep.

When they’re inflated the reduce dmg and with that torpor so when it says you need a certain amount of tranqs you actually need a lot more. Also just put some gates over it and it’s easy to tame

Freeze with a snow owl to stop it floating away

When trying to tame a Gasbags the easiest way is with a snow owl and freeze it and get ur friend to knock it out

Note that it will take two to three times the recommended amount of tranqs for knockout (with crossbow at least, i assume the others as well)