Open Tops/Rimless Tanks with fish

[GreenSpottedPuffer]

Its simple. Fish jump for various reasons and if you have an open top, you have to accept the fact that you will loose a fish or two over the years. There was a thread about this on RC a long time ago that got really long and probably 90% of people with open tops had lost fish unless the tank was only set up a few months. There was everything from triggers to tangs to chromis jumping.