Banded Killifish

[Northern Pike]

Somehow these banded killifish got into my uncles pond and are taking over, im wondering some information on these guys cause im thinking of keeping some as pets,
thanks

 

[bumpylemon]

they are pretty easy to keep. will take all foods. topwaterish fish...prefer sand with scattered rocks. get a school of about 5-7. preferably the same size.

 

[Northern Pike]

thanks how big do they get?