Yeah, puffers sometimes just hunt stuff for the fun of it so I wouldn't put it in a tank with shrimp or any snails you want to keep alive. You can always rehome the pond snail you want to live while you treat your 55g though. The only problem with using something like a puffer is then you have a puffer you need to deal with (unless you really want a puffer). The best solution is to starting feeding less in your 55g (get an autofeeder) and combine that with manually removing snails. If you can get the mature snails then you shouldn't have any more eggs and then you just need to keep removing the juveniles as they hatch. It's not the quickest solution but over time the population should decrease.

Yeah that's pretty much what I have been doing. Just a huge pain in the butt

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Do a combination of traps and turkey baster removal. Also pond snails can reproduce asexually so your favorite snail will continue to produce more.

Why do you care about the snails? Pond snails are largely harmless.
I'd also suggest assassin snails. They're unlikely to go after your big snail, and, yes, they breed pretty slowly. You start with 5, you'll have maybe 10 in a year. They burrow, also, you don't see them much, and they're kinda pretty.

So...i have a 55 gallon that I keep culling pond snails out of. I have a 5.5 gallon that I put them in (cause I don't have the heart to kill them...yet). No matter how often I clean out the 55 g more and more snails pop up. I've scrubbed the stuff I can, I've done huge water changes, I've tried the lettuce trick. NOTHING IS STOPPING THEM!!! I have a pond snail that I love so I can't put in anything that would hurt him. HELP!!! A description of what's in the tank is in my signature. It's quite planted.

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They get into everything...filters are the big issue. They are adorable but breed insanely fast. I'm tired of constantly cleaning them out. Assassins sound like a decent fix

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My understanding is that Assassins will also get your mystery snail. I'm sure other people have had better experiences there, but I wouldn't risk it as I've known people to lose mystery and apple snails to them as well. If you WANT to keep the mystery snail, I wouldn't do assassins.

I had read this exact thing...rhat the assassins will gang up on him. I'm debating moving that one to my 9 g and then getting assassins but I also have ghost shrimp. I woke up to at least a dozen that were visible this morning. I keep trying to manually clear them out but it's been months.

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Assassin's will not hurt your shrimp. I like your idea of moving the mystery snail to another tank while the assassin's go to work, better to err on the side of caution.

That new setup, what's the substrate? You said you hadn't cycled that tank, but that substrate looks kinda like ADA which will leach ammonia REAL bad for the first few weeks and more than likely kill everything in the tank...If it's not ADA and is an inert substrate, disregard

I agree with @JusticeBeaver I had the same problem not too long ago and I think I have solved my problem. Overfeeding was my issue, I cut down on the feeding but would intentionally leave food for the snails in the corner of the tank and I would scoop them out and move them to a different tank. I do have a few snails still but they are rare now which is what I want.

So do assassins reproduce a lot or no? I'm down for that as long as they don't eat my mystery snail.

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