Apple Snail has Huge BUBBLE in flesh

I have the same situation as you. My snail has a huge protruding air bubble. I'm hoping that getting to it early will help. If anyone has any feedback on this condition, please let me know. It does seem rare enough that most proposals were speculative. I would love to hear a "this is how I saved my snail" story :).
 
Hey everyone, my big Golden Apple Snail has developed this as well. It was extremely interesting to read this thread (and I’m sorry for all those who lost their snails, it’s nice to find people who genuinely care about their pets). But I was just going to voice my opinions on the popping of the lung membrane, I am neither doctor nor vet, but I doubt this will work. With a human, we live in the air, so when our lung is punctured like that water can’t enter it. The snail however lives in a toxic atmosphere, as water is certainly not supposed to end up in there. So far i have moved my snail into a small sick bay tank; with just enough water to cover it, but not so much that it's floating (I’m guessing this will reduce stress on its flesh, perhaps preventing it from sliding out like others have done. I'm also wetting down the lung membrane every now and then so it doesn’t dry out. I'm not going to try popping it, and I’ll just hope that it can sort it's self out, or pass quickly. Also i was thinking about if everyone whose snail developed this condition could post on this feed how it was reacting before it got it. Maybe we could identify what’s causing it. Mine was moved from a large 200L tank into a smaller one as my clown loaches has finally grown big enough to attack him (I was assured by the pet shop this wouldn't happen, should never have been so naive). So perhaps he was injured by the clown loaches, or while I was moving him (this was about three or four weeks ago)? he was put it a 10 gallon tank with one other apple snail and about 8 neon tetras. I noticed since then on he was floating on the surface every now and then, but I paid little attention as i knew that snails did this from time to time. But one night I thought about how long he’d been floating and realised it must have been close to one day, and so far that night, I also noticed that my tank was about 5 degrees to hot, so I quickly started putting a few small ice packs in there to cool it down a bit. I woke up the next morning to find his lung exposed. Good Luck everyone, am going to pay close attention to this feed to see if anyone can come up with a solution.
 
The same thing happened to our mystery snails in two separate aquariums about three months apart. I’m worried it has to do with the water conditions where we live. What are the odds it happened to two different snails in two different aquariums. Not sure how common this awful condition is but I wish someone knew how to help.
 
I've also had one of 8 snails I have in my aquarium go belly up with an air bubble. The only thing I did differently than anyone else was place a muck eating tablet in my tank which I now regret as I'm assuming that one snail went right over the small muck eating tablet and probably got confused thinking it was a calcium tablet or just got too much of the air bubbles or had a bad reaction to the muck eating tablet which is fish safe but maybe not snail right over the tablet safe?

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Came here to say THANK YOU for this thread. Saw my oldest mystery snail (he's 5 years old, we think, maybe 6) with a balloon like this and my heart broke. He was fine about an hour before.

Saw this thread and decided we had to give it a shot. We couldn't just leave him like that.

About an hour and a half after "surgery" Pacman was back in his shell and another couple hours later he's slowly moving around his small "hospital" tank.

He's usually a quick little buddy, and he's moving very slow, but I'm grateful to at least see he's more comfortable than he was.
 
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