Snail ID

I would appreciate an ID on this imposter. Now multiplying quite rapidly. Are they of any use?

 

looks like a trapdoor did it arrive with plants?

 

I have those. Try looking for Physa sp.

 

Thanks for replies - yes arrived with the plants.

 

my assasain loves these, i have one ina 140L tank and it cleared the pest ones in about 3-4 weeks. kept it fed for ages

 

hey Nick, what does your assassin eat now?

Chris

 

Plants.