55 Gallon Tank Surprise Bladder Snails After Combining Tanks

So here's a puzzler. I've had two aquariums running for a few years now. I had a planted, high-tech 55 gallon community tank at my home, and a planted 10 gallon cherry shrimp tank at my office. Both tanks have had snails in them, with both having Malaysian trumpet snails, and my 55 gallon having mystery snails and rabbit snails as well. I've never had bladder or ramshorn snails. The plants in both tanks have been there since the beginning, and I haven't added any new fish, plants, or snails in over a year. About a month ago I decided that my job was getting too busy to keep up two tanks, so I brought my cherry shrimp tank home and added all the shrimp, snails, fish, and plants to the 55 gallon. Yesterday I noticed I have a bunch of baby bladder snails crawling all over the tank. I'm 100% certain they're not baby mystery snails from a missed egg clutch. I have no idea where they came from. Can bladder snail eggs lay dormant for multiple years? If they came from the smaller tank, why would they have never hatched in my 10 gallon at work? I'm completely puzzled by this, as I've always kept tight control over both tanks to keep the MTS population in check.

 

I suspect you always had a few, but just noticed them.

 

I suspect you always had a few, but just noticed them.

I don't know how that could be possible. I cleaned both weekly and feel like I would have seen them. They couldn't have come from the 55 gallon, as why would they suddenly be springing up after adding in a few shrimp and pygmy corys. It had to be the 10 gallon, but again, it's so small I don't know how I would have missed them. These ones are constantly crawling up the glass. It's not like they've been hiding down in the substrate.

 

I don't know how that could be possible. I cleaned both weekly and feel like I would have seen them. They couldn't have come from the 55 gallon, as why would they suddenly be springing up after adding in a few shrimp and pygmy corys. It had to be the 10 gallon, but again, it's so small I don't know how I would have missed them. These ones are constantly crawling up the glass. It's not like they've been hiding down in the substrate.

I'm not saying for sure that's what happened, but if it's been over a year since you've added anything to either tank I can't think of any other possibility. As far as I know they can't fly from one place to another.

 

So here's a puzzler. I've had two aquariums running for a few years now. I had a planted, high-tech 55 gallon community tank at my home, and a planted 10 gallon cherry shrimp tank at my office. Both tanks have had snails in them, with both having Malaysian trumpet snails, and my 55 gallon having mystery snails and rabbit snails as well. I've never had bladder or ramshorn snails. The plants in both tanks have been there since the beginning, and I haven't added any new fish, plants, or snails in over a year. About a month ago I decided that my job was getting too busy to keep up two tanks, so I brought my cherry shrimp tank home and added all the shrimp, snails, fish, and plants to the 55 gallon. Yesterday I noticed I have a bunch of baby bladder snails crawling all over the tank. I'm 100% certain they're not baby mystery snails from a missed egg clutch. I have no idea where they came from. Can bladder snail eggs lay dormant for multiple years? If they came from the smaller tank, why would they have never hatched in my 10 gallon at work? I'm completely puzzled by this, as I've always kept tight control over both tanks to keep the MTS population in check.

Their clutches hatch fairly quickly, they can’t sit around for years before they hatch. They usually hatch in a week or less.

 

Their clutches hatch fairly quickly, they can’t sit around for years before they hatch. They usually hatch in a week or less.

Right, so I'm still just confused. The way they're traveling all over my 55 gallon, I can't imagine I wouldn't have seen them in the smaller 10 gallon at my office. I'm stumped.

 

Right, so I'm still just confused. The way they're traveling all over my 55 gallon, I can't imagine I wouldn't have seen them in the smaller 10 gallon at my office. I'm stumped.

Perhaps a snaily gremlin brought them?