Yes .It is called a gonopodium ,if you can't spot it you should wait for it to get older and get a female and when he is courting as it will come out and move to the side and if they are mating then you will see it aswell .But if you dont want fri(babies)i wouldn't get a female because they breed like rabbits.
yes
By performing an experiment
no
It is poo and will drop off eventually.
It will either flee or hide. Probably it will do both.
No, they are different types of fish, but since they are both livebeares, they can interbreed.
no
No , no they do not.
you cant. you have to remove the fish before it does further damage to other fish.
Hava Nagila x3 Benishmacha
Pel Hava's population is 218.
Hava Volovich was born in 1916.