Dont catch any stickelbacks, they are actuallly a freshwater whale, Aonya honalalis tacharia. The babies closely resemble stickelbacks.
I know everything about fish
Id say you should pick up the fish and place it under a lightbulb. Remember to leave a string connecting to the tank to provide an escape route. In case he fails to use the string, leave an airhorn near the tank so he can signal you.
I think chestnutmoray ment, like a iridescent shark. You have to admit that there worth a little more than a goldfish but I also agree with the fact that they should not be slowly tortured.
-Lucas