Question by  
                                                              lotteroo (10)
                                                          
                          
                             
                            A baby water snail has appeared in my fish tank.  I have no other snails/plants, so where has it come from?
                            
                            
    
                            
                                                          
                                My fish tank currently has 5 leopard/zebra danios, one black moor, and 3 mountain minnows.  It previously has a sucker fish and another black moor but sadly they died.  I also previously had 3 live plants in there.  The snail has just appeared but where has it come from, and will it survive?