The secret is.....
.... leave the killies that have jumped out of the tank, next to the tank.
When they see the dead ones outside.. they get the hint :lol:
I have 3 dead killies outside each tank... No other killie has dared to jump out.. whether or not I wear sneakers :lol:
then again my killies are in a high foot traffic environment.
Killies can jump out of a 10L bucket when it is only filled 2 inches