I am not sure what this is or where it has come from but I found two of these in my tank. I have described it somewhere in one of the other threads and someone said they think it is a limpet but I thought if I posted a picture one of you might just be able to ID it and tell me for sure what it is. It is the blurry white thing in the middle of the picture. Sorry it isn't very good quality but it is tiny and I took it on my iPod lol, it is also the best of 4 pictures I took of it.

they really are. the shell is relativly flat, and hangs over the body. When I got it out to have a look at it, the shell looks kind of like a clam shell just only on the top. It's really weird. I have looked up limpets and it does look a little like that.

Yes! That's exactly what they are. As I said I have no idea where they have come from but that is defo what they are!

That's probably where they came from and i just never noticed them before.

Really as I could really do with trying something like that. Someone told me they wernt very good. Aren't they tropical though? Would they be alright in a coldwater tank or is there an alternative for coldwater tanks? Also if I did get something like that are they ok with fish (mainly my fry) would they eat them? Im also worried about my apple snails I love them and don't want them to be hurt, do you think they would be too big for a snail eating snail?
Both my snail tanks are completly over run and some have found their way into the 28L with the fry and are taking over in there.

assassin snail is a predator, and it will eat any small snails it can catch. It will likely eat fish eggs too, and quite likely immobile (“wriggler”) fish fry too. But otherwise it is an excellent community tank resident. It does not harm snails that are substantially larger than it is, and things like adult Nerite Snails as well as Tylomelania seem to coexist amicably enough. Fish are at no risk at all once mobile, and even livebearer fry are ignored.


Tylomelania spp. are essentially non-predatory so far as aquarium fish and invertebrates go.


On the other hand, like all snails, Clea helena and Tylomelania spp. are vulnerable to predation when kept with large fish. Cichlids, pufferfish, loaches and certain catfish (e.g., Synodontis) are likely to view Clea helena and the smaller Tylomelania as potential food. Even if they don’t eat them outright, fish that like to peck at things may stress these snails sufficiently that they’ll cause damage and eventually death.


Good companions are things like tetras, non-nippy barbs, rainbowfish, livebearers, Corydoras catfish, bristlenose catfish and so on.


 

they (like apple snails) will do all right in a temperate tank

no, they only lay one or two eggs at a time...very slow breeders

Strange that none of the vegetables work? I stuck some blanched brocolli in my snail tank and I swear at least half the population of the tank had gang piled on to it, munching away XD They go mad for spinach as well.

Good luck with the assassin snails though

assassins are cute they look like little bees
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they'll mop up any left-over flakes. Basically protein eaters but will take a bit of rotten veg